Fairchild 74-03A Service and user manual

TIME

74-03A

Instruction

Seri

a I

No.

BASE

PLUG-IN

Manual

This Plug-in Series with

Module

Oscilloscope

the

Type 7 66H

is

. Insert this

F=~l~CHILCJ

INSTRUMENTATION

50

SOMERSET

PLAC

E , CLIFTON, N . J .

designed

for use with

Manual

Series Instruction

07015

the

into

the

Manual.

Fairchild Type

binder

you

received

766H

@

1965

Fairchi

ld

Camera

and

Instrument

Corp

.

Manual No.

6704

4063

TABLE

OF CONTENTS

'

Section

1. TECHNICAL

l-1

Introduction

1-2

Technical

2. OPERA TING INSTRUCTIONS

2-1

First

2-2

Sweep

2-3

Trigger

2-4

Trigger

2-5

Trigger

2-6

Trigger

2-7

Sweep

2-8

Sweep

2-9

Sweep

2-10

X-Y Displays

2-11

Gate

2-12

Sawtooth

2-

13

Time

SUMMARY

Time

Triggering

Source Selection .

Coupling Slope Selection Level Selection

Mode Rate

Calibration

Output

Measurements

2-14 Phase-Shift

3. CIRCUIT DESCRIPTION

3-1

Introduction 3-2 3-3 3-4

Trigger

Sweep

Horizontal

Circuit

Title

Summary

.

Operation

...

Selection

Selection .

Controls

Adjustment

Output

..

Measurements

Description

Deflection

Description

3

-5

4. PERF

4-1 4-2

4-3 4-4 4-5 4-6 4-7

Timing

ORMANCE ASSURANCE

Maintenance

Initial

Checking

Dual

Diagram

Performance

Setup

Sweep

Trigger Single Sweep Automatic

Trace

Switch

.

Check

.

of

Type

Calibration

Source

Triggering

to Assure

Sweep .

(Optional)

4-8

Saw

Out

and

Gate

Out

SWEEP

5.

MAINTENANCE

5-1

Introduction

5-2

Removal

5-3

Servicing

5-4

Gaining 5-5

Test

5-6

Trig

CHART

Service

CHECK

.

AND

and

Replacement

Hints

Access

Equipment

Adjustments

Level

Cent

CALIBRATION

RECALIBRATION

. .

to

Chassis

Required

Adjustment

....

..

....

.

..

.

.....

Circuit

TEST

74-03A .

.

and

Polarity

..

.

Check .

of Parts . .

....................

for

.........................

......................

Check

. 5-2

Page

1-1 1-1

2-1 2-1 2-1 2-5 2-5 2-5 2-5 2-7 2-7 2-7 2-8 2-8 2-8 2-9

3-1 3-1 3-2

3-4 3-5

4-1 4-1 4-1 4-1 4-1 4-3

4-3 4-3

4-3

5-1 5-1 5-1 5-2

5-3

Section

5-7 X 5-8 5-9

Amplifier DC Balance Sweep

5-10 Slow Sweep 5-11

XIO

5-12 X Amplifier 5-13

Fast Sweep

6.

PARTS

LISTS

6A Electrical 6B

Spare

LIST

VENDORS

Figure

1-1

Type

2-1

Front-Panel

System

2-2

Front-Panel

and

2-3

Initial

Base

2-4

Elapsed

2-5

Finding

2-6

Phase-Shift

3-1

Trigger

Functional

3-2

Sweep

Block

3-3

Horizontal

Functional

3-4

Timing

Time

4-1

Initial

Base

5-la

Test

Adjustment

5-lb

Test

5-2a

Right

and

5-2b

Right

and

5-3

Left

and

5-4

Top

and

6-1

Front

Titl

e

Level

Adjustment

Adjustments

Length

Adjustment

Cal

Adjust

Registration

HF

Adjustments

Calibration

AND

SCHEMATICS

Parts

List

....

Parts

List

OF

RECOMMENDED

ILLUSTRATIONS

Title

74-03A

Setup Setup

Side View Side View

Transistors

Side View

Transistors

View

Trimmer

Panel

Time

Base

Facilities,

....

Facilities, External Setup

of

Input

Type

74-03A

Plug-In

Time

Measurement

the

Frequency

Measurements

& X

Input

Circuits,

Block

Diagram

Generator,

Functional

Diagram

Deflection Amplifier,

Block

Diagram Diagram Base

Setup

of

Type

Plug-In . .........

of

Type

Plug-In

for X Ampl for

Adjusting

Showing

Trimmer

Adjustments

Showing

.

Showing

. 5-8

Showing

Transistors

Adjustments

Replaceable

Time

Triggering

.

74-03A

.

...

....

...

Adjustment

Plug-In

.

Base

Time

.

. .

.

........................

74-03A

.....

......

....

.........

Time

HF

C8301

Pots

Tubes

.

Parts ....

Page

5-3 5-3 5-3 5-3 5-3 5-3

.

5-4

6-1 6-5

6-7

Page

1-0

2-2 2-3 2-4

2-8 2-9 2-9

3-2 3-3 3-5

...

3-6 4-2

5-4 5-5

5-6 5-7

5-9 6-0

section 1 - technical summary

.

'•

POSITION

EXT

RESET

.1

-·

TIME

BASE

TYPE

74-03A

(SLOPE

SAW

OUT

·-

SWP

CAL

\ .

GATE

OUT

EXT

INPUT

HF

STAB

-

COUPLING

AC

1

SOURCE

INT

1-0

SWP

READY

Figure

FAIRCHILD

1-1.

Type

74-03A

•

Time

Base

' -

CLIFTON.

Plug-In

.I

EXT

fU.

SECTION

1

1-1 . INTRODUCTION

The

Type

74-03A

designed Series Osci lloscopes. rates to

2 seconds/ div matic, Time accuracy

The

calibrated

are

or

Base

VAR

for

use

provided

sing

le sweep

unit

of

the

sweep

IABLE

range

at

and

is

of

sweep rates between the fixed steps

TECHNICAL

Time

with

the

Twenty-four

rates from 0.

with

recurrent,

operational

properly

rate

is

control

provides a

Base Plug-in

Fairchild

calibrated

05

mode.

calibrated, the full scale

within

±3%.

Module

Type

microsecond/ div

triggered,

continuous

766H

sweep

auto-

When

SUMMARY

of

its

concentric

is

the

un-

magnification

screen center. Use of this

calibrated

Note

50

nanoseconds

1-2. TECHNICAL SUMMARY

The Time which

sweep

: All

measurements

performance

Base Plug-in

follows.

neighbor.

control

rate

of

sweep time.

is

A

calibrated

will

expand

feature

to

5 nanoseconds/

are

specification for

given in the

extends

taken

technical

the

sweep

beyond

Type

10

the

div

.

the

74-03A

summary

times

abo

ut

fastest

first

1-1

section 1 - technical summary

SPECIFICATIONS

TIME

BASE

SYSTEM

Calibrated

Uncalibrated

Sweep

Calibrated to 2

sec/

The

VARIABLE ibrated extends onds

full scale). The

dicator

-+-

tion

of

Accuracy

3 %

measured

of

the

Range

linear

sweep

div

in

24

Sweep

range

the 2 sec/div

Range

control

of

sweep

uncclibrated

over

CRT

screen

steps

provides

range

UNCAL

the

rates

of

1, 2,

rates

vernier

centered

from

0.05

µ,sec/div

and 5 sequence

a continuous uncal-

between

to 6

lamp

gain

ranges sec/div serves

(60

as

setting

8-division por-

an

and sec-

in-

Gate

Out

A

BNC going is

750

pedance

by less ground

and

fall times

Recurrent

Sweep

The free-running

bright tion. Recurrent quency

front-panel

pulse

of

ohms; for optimum

should

than

and

is

base

line for

triggering

connector

more

than

be

greater

15

pf.

Gate

time-coincident

are

faster

SWEEP MODES

sweep

zero

sweep

is

required

4 volts.

performance, than 1 OOK is

referenced

than 0.25

mode

vertical

is

also

provides

Output

with

permits viewing a

used

a positiveimpedance

load

ohms

shunted

directly to

the

sweep

microsecond

reference

when

indica-

high-fre-

im-

. Rise

Sweep

Expansion

Expanded

Sweep

Saw

Expansion

The POSITION knob switch;

display. pand

calibrated

-+-5% All seconds sweep UNCAL

Sufficient to position

panded

A vided the external

Out

A BNC

going is

than 1 OOK saw and

the

Accuracy

for

measurements

rate

Sweep

Calibration

front-panel

to permit normalization

Main Frame

saw

nominally

output is

time-coincident

pulled

The

calibrated 1 OX

sweep

about

sweep

of

sweep

to 5

nanoseconds/

lamp

is

lit

Positioning

trace

on

the

screwdriver

and

time

standard

front-panel

of

25

volts

3300

ohms

is

referenced

is

provided

knob

indicated 1 OX

screen

rate

to 5

nanoseconds/div

rates

up to 5

taken

beyond

time .

An

for this

connector

ohms,

shunted

sweep

any

full

scale

screen

SWP

standardizing

amplitude. Output

and

load

by less

within

with

the

with a push-pull

MAG

of

the MAG control will excenter;

sweep

extends

nanoseconds/div

the

first

uncalibrated,

div

is

provided

rate

setting

portion

CAL

control

of

the

plug-in unit to

the

sweeps

provides

-+-5

should

than

volts

a positiveimpedance

15

50

of

be

of

fastest

nanofaster

. The

the

ex-

is

pro-

to

an

greater

pf. The

ground

.

Triggered

This ternally circuit

Auto

Sweep Auto

ranges maintains

trace

matic Triggering"

Single

Sweep

The single

sweep the be by a front

EXT The SWP

gate gered

HF

Stability

The proved nals

current variation that can

Sweep

sweep

mode

is

applied

sweep

when

vertical

of

the sweep rearmed

RESET

READY

multivibrator

panel

synchronization

in

range sweep

in

exact

be

selected

trigger

provides

there

is

base

line

amplifier

sweep

time

base

is

reset

or

with a

panel

RESET

panel

connector.

indicator

is

TRIGGERING SYSTEM

HF

STAB

from 5

mode

natural

sub

multiples

normally

a visible

no

when

mode

rearmed

single

armed

control

Mc

. This control

repetition

used

signals drive

base

signal

losing a

operation.

permits

to

appear

. The

external

push

is

lit and

is

provided

of

high-

to

above

of

the

. Internally

the

line

input. Auto

signal

Also

but

on

the

single

trigger

button,

whenever

ready

to permit im-

frequency

50

Mc

provides

rate

of

the

trigger

Time

on

all

triggering

in

see

"Auto-

one

screen

sweep

or

from

the

to

be

input sigin

the

a small

sweep

frequency

or

ex-

Base

sweep

dual

driven

until may

pulse,

the

sweep

trig-

re-

so

1-2

technical summary - section 1

Internal

Sweep

1 Types ules in Y

External

250 the sweep Trigger pling

Ext

Trig

1

Trigger

A

ground. range a

Trigger

Selection

Line,

Line

Trigger

Line

polarity

with

AC

Coupling

High-pass

cycles

DC

Coupling

Direct

sitivity

maintain

with

level

due

LF

Reject

Differentiated

vided

Trigger

will

trigger

Mc;

from 1 div

76-01

cavity

Trigger

mv

peak-to-peak

sweep; 1 volt

to

1 5

leveling,

are

included

Input

Impedance

megohm

Level

range

Fairchild

Slope

shunted

of ± 15

On

is

extended

Type

of

or

External

frequency

and

the

TRIG

filter

coupling

when

the

respect

setting; and

to

random

to

reject

A,

76-02A,

Mc,

and

slope

External

4290

positive

triggering

the

LEVEL

with

is very initial to

the

repetition

trigger

hum

from

0.3

div

of Y signal

76-03

from

de

peak-to-peak

2 volts

peak-to-peak

selection,

by

40

pf

(nominal)

volts (nominal)

Trigger

to ± 150

Attenuator

or

negative

is

available

can

triggering

control

provided

slow

reference

CRT

to

avoid

and

point

low-frequency

to

waveforms

scale

trigger

rate

input; high

low-frequency

of Y signal

up

to

and

76-08

to 1 Mc

will

and

ac

with

source, the

volts

with

Probe

slopes on

be

selected

may

cutoff

optimize

are

position

trigger

of

at a given

point

signals

-pass

filter

1 0

Mc

will

trigger

to

25

or

de cou-

respect

leveling

the

use

Internal

in

be

shifted

of

trigger

applied;

the

trigger

variations

is

amplitude

up

to

with

Mod-

the

Mc.

to

of

either

80

sen-

to

trace

pro-

,

modulation; Signals pass

Automatic

Automatic disabled ternal

ger

a

continuous

50

Bandwidth

Direct Capacitively

cycles

Rise

Time

Faster

Sensitivity

Xl Xl 0 Mag: 20

Input

Impedance

1

megohm

Input

Connector

EXT the

X

Positioning

A

front-panel tioning sweep

Beam

Position

Two

to

when

low-frequency

should

the

Triggering

trigger

sensitivity, minimizes

cycles

HORIZONTAL

Coupled

than

Range:

INPUT

horizontal

of

to

indicator

alert

the

it

is

rise

LF

Reject

filter

triggering

trigger

within

positioned

leveling

sources. The

base

: DC

Coupled:

95

nanosecond

200

millivolts/div

millivolts/div cation of X amplifier

shunted

connector

deflection

control

the X Input

two

Indicators

lamps

operator

or

line

DEFLECTION SYSTEM

required

by

cutoff

fall

in less

is

available

on

auto

trigger

at a nominal

to 4 Mc,

Low-frequency

(Nominal) for

display

40

pf

is

provided

amplifier

permits

signal

divisions

are

located

as

to

the

off

the

screen

nominally

than 1 00

in

conjunction

Internal,

mode

setup,

(Normal)

full

scan

(nominal)

to

for

coarse

or

any

of

screen

on

the

direction

15

µ,sec

Line,

and

improves

and

provides

frequency

cutoff

is

Xl 0 magnifi-

operation

permit

use

X-Y

displays

and

fine

portion

center

front

of

the

of

panel beam

Kc.

to

with

Ex-

trig-

of

80

of

posi-

the

1-3

NOTES

2-1.

FIRST

TIME OPERATION

(

figures

Unless

Y

Amplifier

(left-hand

Plug-in

side)

of

unit

is

will

provide information instructions text

indicate tings.

The

operator

Figure

We

know

with

your deavor, built-in the

various

2-2

. SWEEP TRIGGERING

To

obtain a stable sistently cycles

of

to

occur

of

occurrence pattern screen

each

the

waveform intelligible. by

the

fixed

time purposes, across

the

The

following

use

the

tions.

2- 1 to 2-

otherwise

Plug-in

side)

unit

is

inserted

the

Main

inserted

following

in

you may set

calibrator

start

at

will be

input

proper

in

vertical

must

which

front-panel

illustrations

becoming

2-1.

Front-Panel

tem

2-2.

Front-Panel

External

2-3.

lnitial

Base

that

new

instrument.

controls

at

the

input

random

of

traced

time

the

to

drift

The

signal, relationship the

starting

screen may be called

instructions

triggering

SECTION 2

OPERA TING INSTRUCTIONS

To

31

designated,

module

and

the

in Frame. the

Y cavity

deflection

be

translated

follow,

familiar

Setup

Plug-In

you

are

up

signal

on

the

display, the sweep

same

waveform.

or

at a rate

the

input

out

sweep runs.

across

sweep

therefore

or

by some signal which bears a

to

of

it

is

presumed

is

inserted

Type

the

If

the

of

capital

controls, connectors,

are designed

with

Facilities,

Input

of

anxious

To

the

instrument

to

demonstrate display.

time relative to

If

waveform, the

at

a different

the

input

each

"triggering

tell you how to select

signal for various

in

74-03A

X cavity

Type

74-03A Plug-in

the

Main

of

the

accordingly.

letters

the

Time

Triggering

Type

to get

aid

you

the

sweep

unrelated

This

will

screen

must

signal.

horizontal

that

the

Y cavity

Time

(right-hand

trace

oscilloscope.

74-03A

in

the effects

point

either

or

be

For

the

Base

Frame,

and

In

within

or

to

aid

Base

Sys-

and

Time

acquainted

this en-

using

must

con-

recurring

is

allowed

to

the

rate

displayed

on

cause

to be un-

triggered

present

waveform

sweep."

and

applica-

it the the the set-

the

of

the

a

obtain signal, set gering nections in most

b.

Sometimes with cially useful from several With remains possible to observe signal oscilloscope Also, forms For

example, rived time

relationship point by

the

When able, it jitter trigger

sweep

not

permit

rise

of has a signal not

provided, a trigger used the

entire

External

dual-trace

in

the

lationship tain a stable must peak, played the

sweep, connector EXT.

triggering

the

SOURCE

is

convenient

are

required.

applications.

Externa

an

external

time

from

in

of

to

have

and

l

it

is

external

where

different

trigg·ering,

constant

in

an

and

at

different

the

displayed

a stable,

is

possible to observe

the

input

is

triggered

the

externally

signal.

amplifier

alternate

between

an

signal.

and

in

external

triggering

phase

if

the

waveform

and

circuit

waveform.

displayed

signal.

base

line

signal

delay

triggering

mode

display,

amplitude

bear

a fixed

To

use

connect

set

of

the

switch to

since

no

external

Satisfactory results

advantageous

signal.

points

external

internally.

being

External

signals

places

the

amplitude

the

shaping

circuit

controls

relationships

in

external

at

phase

are

compared

waveform

This

is

to

show

observed

line.

When

preceding

trigger

modules

the

should

the

an the the

the

to show

two

external

of

at

time

external signal TRIG

are

triggering

the

triggering

the

of

triggering

and

not

Internal

also be

when

displayed

relationship

sweep

within

on

least 0.25 volt, peak-to-

from

the

lNT.

Internal

triggering

are

to

trigger

trigg·

going

and

shape.

and

amplification

without

for each

between

circuit

input

the

waveforms

to

accurately

with

possible

screen

unless

a sig·nal

the

oscilloscope to

these

the

triggering

signal for

to

the

SOURCE

the

ering

to be

an

instrument.

signal

Thus,

resetting

observation.

the

can

signal

to a circuit,

the

input

signal

respect

when

triggering

prior

the

delay

signal

used

with

are

proper

signals.

to

triggering

EXT

switch

input

trigcon-

obtained

sweep

is

espe-

sampled

usually

it

is

of

the

wave-

be seen.

is

dethe

at

each

signal

is

avail-

measure

to

the the

will

to

the

Y system

line

is

may

be

display

most

operated

time

re-

To

ob-

signal

the

dis-

INPUT

to

a

2-3

. TRIGGER SOURCE SELECTION

a .

Internal

For

most

by

the Y Input

the

signal

applications,

signal.

amplitude

the sweep may

The

be sufficient to trigger

only

requirement

be

triggered

the

is

that

sweep.

c.

Line

If

the

ship

to triggered TRIG

SOURCE

pattern the

on

display

power-line frequency,

by this signal.

switch to

bears a fixed

To

accomplish

LINE.

time

the

sweep may be

this, set

relation-

the

2-1

section 2 - operating instructions

Inner

knob

o continuous,

of

sweep

rates

steps

of

its

Screwdriver

malization the

Main

Frame

Outer

brated

on centric

CAL

VARIABLE

(red

pointer): provides

uncalibrated

between

concentric

SWP CAL

control:

of

the Plug-i n

knob

front

VARIABLE

the

neighbor

permits

sweep

panel

range

fixed

nor

unit

TIME/DIV

(block):

rates

only

control

-

to

selects

as

indicated

when

the is

POSITION

EXT

RESET

set

cali-

con-

POSITION & l

Control

with Time Bose Plug-in 1

to

OX

signal.

push-pull switch: the

MAGnification

TIME

is

normally

of

the

BASE

inserted in its X

internal

TYPE

-·

74-03A

·-

SWP

CAL

control

sweep,

OX

MAG

positions

cavity;

or

of

SAW

OUT

GATE

OUT

r.:.

\

EXT

INPUT

HF

STAB

the

trace

the

pulled

External

horizontally

knob

horizontal

BNC

connector:

tive

sow

sweep

time

BNC

connector:

tive

output

sweep

time

iary

equipment

when

indicates

input

SAW

signal

GATE OUT

pulse

for

operation

OUT

provides a posi-

coincident

provides a posi

coincident

with

of

auxil-

-

,_-TRIGGERING~

SLOPE

COUPLING

AC

~

NT

Switch :

nal

sweep

front

nal

when

AMP

SWEEP

selects

panel;

MODE

modes

or

the

four

the

switch

SELECTOR

different

as

indicated

EXT

INPUT sig-

is

set

inter-

to

on

X

figure

SWP

READY

2-1.

FAIRCHILD

front-Pane/

()+

Ii

.

' LICK

cuno11.

Facilities, Time

REJECT

11.J.,

Base

lf

~

u.s.A.

System

~

EXT

~

LINE

lam;:>: ing brated control

lights

indicator

sweep is

not

UNCAL

and

when

or

turned

serves os a

using

when

VARIABLE

fully

clockwise

warn-

uncali

-

2-2

RESET

Permits

rearming

contact

closure

ual

opera

tion

switch

or

by

the 2-contoct

or

EXT

of

single

to

ground

of

the

RESET

remote-control

EXT

RESET

by

operation

socket

sweep via

either

man-

pushbutton

operating instructions - section 2

EXT

INPUT

Dual

function

connector:

l.

External

trigger

ope

rati

on;

set

Trigger

2.

trigger

signal

X Amplifier

Input

signal

oper

to

this

ation;

connec

set

connector

tor

Sweep

.

Mode

.

TIME

SOURCE sw itch to

Selector switch to X

BASE

TYPE

POSITION

- -

RESET

•

EXT

RESET

of

-·

74-03A

·-

SWP

CAL

EXT

and

AMP

apply

and

SAW

GATE

EXT

HF

STAB

external

apply

OUT

INPUT

X

HF

STAB

Control

: permits

improved

count and rotes

lock-in

of 5 Mc

of

signals

or

greater

having

down

repetition

lamp

gate

to

:

light

generator

be

trigge

SWP

s

whenever

red

Dual

1.

2. X

READY

is

armed

fun'ction

Trigger age

X VERNIER

the

and

TRIG

level

Amplifier

Figure

sweep

ready

LEVEL & VERNIER

control:

operation

at

which

sweep

operation

gain

control.

2-2.

SWP

READY

•

FAIRCHILD

(red): selects volt-

is

fired

.

{green)

: serves as

Front-Panel

Facilities,

r-TRIGGERING~

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('.'"':)+

T

..

•

~

AC

lf

REJECT

~

DC

CLIFTON.

IU,

~

U.SJ.

JACK

For

ground

connections

Triggering

and

External

NT

EXT

LINE

Two, 3-position lever

switches:

from

internal

or

capacitive

SLOPE

Input

TRIGGERING

or

polarities

and

enables

external

COUPLING,

one,

2-position

trigger

selection

SOURCE

and

ch~ice

direct

of

2-3

section 2 -

operating

To

obtain

the

numbered

Use

the

same

This will e l

iminate

(

instructions

calibrator

display,

set

the

due

is

controls

experienced to

misalignment

steps

in

procedure

"cockpit"

sequence.

when

difficulty

troubles

exactly

when

as

shown

and

obtaining a display.

of

controls.

..

AIRCHILCJ

perform

766H

•

Readjust INTENSITY, FOCUS

& AS

TIG controls

pattern.

Readjust @

center

the

display

Set

outer

knob

(VOL TS/DIVI to CAL

Rotate

inner

(VARI

The controls properly

screen

Y Plug-in

knob

ABLE)

fully clockwise

front-panel

on

the

adjusted

trace.

Instruction

NO

TE

screwdriver

Y PLUG-in must

to

See

obtain

the

appropriate

Book

for a sharp

BAL

be

on

on-

PAnERN

POSfllONJNG

to

roe

0

.,

0

outer

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us

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to

INTENSITY

10

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a··

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l

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rtl'tU

11nuc

TIME

""

- ·

1'-GJA

(2\

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ILLUM

"':;

BASE

· -

Set Mode

AUTO

Set

ASTIG, FOCUS, & IN-

TENSITY

controls

of

range

Rotate

clockwise

the

oscilloscope

Set

outer

knob

(TIME/DIV) to 5

mSEC

Rotate

inner

clockwise

to actuated UNCAL

Set

switches

LINE

CAL

(click

lamp

is

TRIGGERING

to

-+-

is

, DC,

to

knob

heard).

off

to

center

turn on

(VARIABLE)

until

switch is

Note

that

2-4

Figure

2-3

.

Initial

Setup

of

Type

.

74-0JA

Time Base

Plug

-In

2-4

. TRIGGER

a.

AC Coupling

Selection

by

setting

This

mode

a

low-freyuency feature the

In

prevents

pattern

the

AC components positioning selected TRIG

switch point control

calibrator

100 cycles

severely

When

Note:

to

LEVEL

using

is

set to AC.

on

the

setting

AC

signal

may

differentiates

recommended

b.

DC

Coupling

The

DC

mode

forms

which

fore

discriminated

of

the

AC

position network random stably

of

time repetition

in

the

This

mode

waveforms

applications:

1.

For

optimizing

when

very low

2.

For

maintaining

the

trace

with TRIG Source;

random

switch

trace

given of

form frequency triggering quency frequency the

LEVEL and

3.

For

repetition

When

using

is

set

always

setting

the

vertical

c.

LF

Reject Coupling

The

LF

of

the

rejection

sweep

avoiding

REJECT

components

signal.

components

circuits

COUPLING

of

the

Trigger

is

provided

AC

SELECTION

triggering

COUPLING

with

a high-pass filter

cut-off nolllinall y

erratic

vertically

lllode,

of

the

of

the

provide

triggering

while

triggering

trace.

The

the

desired

using

control.

the

AC

mode, the

The

trace

W 1111efonn for a given

regardless

coupling

or

be

erratic

of

triggering

square

since the

the

trigger. DC

for these signals.

is

especially useful for

change

constant

DC

permits

mode

and

very slowly

against

(80

cps).

in

the

rates

are

.

excellent

is

most

by the low-frequency cu to

AC mode, signals

useful in

trigger

frequencies

respect

control

rate

the

DC

to DC.

starts

at

of

the

trigger

When

TRIG

the

to

setting

triggering

mode,

the

same

are

initial

the

point

the

using

LEVEL

positioning.

mode

is

AC

mode

and

such

Use

AC

triggering

is

required.

below

when

the

mod e

is

accomplished

switch to AC.

that

at

80 cycles.

when

positioning

internal

is

unaffected

signal

or

triggering

display

Trigger

always starts

the

vertical

on

the

triggering.

by

by the

vertical

level

via

use

COUPLING

at

the

Trigger

LEVEL

positioning.

line-frequency

wave signals less

SO-cycle

cutoff filter

coupling

viewing

and

which

are

Because of the

coupling

sometimes viewed

triggering

sensitivity

on

the

or

all types

following

operation

applied;

reference

CRT

when

position

scale at a

on

Internal

variations

signals.

Trigger

Internal

point

a special

is

used to reject low-

as

60 cps

COUPLING

Source,

on

the Scale

control

regardless

high-frequency

hum,

unless low-fre-

Triggering

15

Kc may

LF

signals

REJECT

not

mode

operating

used .

triggcnng

when

internal

duces

has

This

the

de

can

be

of

the

same

than

wavethere-

having

more

of

given

due

to

the

for

in

the

with

initiate

is

ff

a

is

the

I 00 µsec

clual-tirne signals triggering. trace

which such greatest

nals in

ing contains q uency and display.

ing

undesired

nents high-frequency duce respects,

to

2-5.

sweep

the

is

neg·ative

2-6.

specific voltage ceed switch TRIG sweep citation switch LEVEL consistently signal.

2-7

ence absence very useful

instructions - section 2

The

LF

REJECT

frn111

Ifie

it

is

set

up

trigger

the

two

channels

Signals

when

plug-ins

permits

units,

use

the

Occasionally

effects

must

Note

the

when

dual

soul'Ce.

of

have

using

that

are

triggering

AL

it

from a cornplex,

undesirable

components.

line

pickup

If

mode,

rnay

this occurs, select

thereby

components.

are

blocked

triggering

the

stable

triggering

the

LF

REJECT

the

AC

mode.

TRIGGER SLOPE SELECTION

When the

excitation

set

to

TRIGGER

The

is

triggered

- ,

slope

TRIG

Trigger

signal.

the

sweep

of

LEVEL

which

before

the

is

set to

LEVEL

sweep fires.

control

consistently

signal. Conversely,

set

to

the -position,

control

. SWEEP

a.

Automatic Sweep

When

using

trace

of

on

MODE

will

an

makes

the

appear

input

while

111ode

Typ

e 76-02A

for

alternate

The

a difference in

on

triggering

rise

the

LF R E.J

are

to

the

Type

provided

from

LF

REJECT

displaying

Ternate

is

required

high-frequency

low-frequency

In

such

make

elirninating

The low-freyuency

from

the

that

SLOPE

on

the

When

is

the

excitation

SELECTION

control

the

the + position,

makes

on

the

it

possible

negative

SELECTION

AUTO

on

signal.

testing

equipment

will

provide

Dual-Trace

sweep

LF

RE.J

more

mode

ECT

positioning

stability.

or

fall tirne faster

ECT

mode

be displayed, use

76-08

and

other with a selector one

channel

mode

two

lllight

non-synchronous

mode.

to

obtain

stable

waveform

noise

cases,

the

additional

it

difficult to

the

triggering

waveform

is

triggering

switch

rising

the

Trigger

triggered

obtain a stable

LF

REJECT

the

effects

circuit

is

passed

required.

mode

is

or

positive s

SLOPE

on

In

set

the

signal.

permits

triggering

When

the

selection signal Trigger

adjustment

it

possible positive with

the

adjustment

slope

rnode, a

the

screen even in

This

to

slope

Trigger

of

to

trigger

of

the

horizontal

automatic

since a

stable

plug-in

and

using

mode

level

than

. H

slower

external

multi-

switch

only.

With

find its

trigger-

that

or

line-fre-

noise

trigger-

of

these

compo-

while

to

pro-

all

other

is

identical

to

+,

lope of

switch

falling

of

must

SLOPE

of

trigger

of

the

SLOPE

the

TRIG

the

sweep

excitation

refer-

rnode

reference

re-

of

sig-

the

or

a

ex-

the the

ex-

the

is

2-5

section 2 - operating instructions

trace

will always be visible regardless

signal

is

The

AUTO

nals

or greater operation,

applied

periodic

than

mode

50 cycles.

set

Sweep

to

the

oscilloscope

simp

waveforms

To

Mode

SWP.

b. Recurrent

Setting duces a free-running ing

signal. dependent trol.

When

ence

trace becomes

The

AUTO when Y dual-trace signal

applied

is

intermittent.

fies

high-frequency

The

front permit input

improved

signals in 50 megacycles. Use variation base so quency

may be selected.

the

The upon

using

in

that

Sweep & HF

SWEEP

· sweep

frequency

the

the RECUR

more

SWP

and

operation

to

either

Use

of

triggering.

panel

HF

synchronization

the

range

the

natural

exact

sub-multiples

switch

setting

visible

RECUR

Channel A or

the

STAB

of

this

lifies

synchronization

having

obtain

Selector switch

Stability

to

independent

of

the

of

the

SWP

at

SWP

is

used,

RECUR

control

from

5 megacycles

control

repetition

of

whether

or

not.

repetition

automatic

to

AUTO

RECUR

recurrent

of

SWP

any

trigger-

sweep

TIME/DIV

mode,

the

higher

of

modes

and

SWP

high

sweep rates.

are

the

trigger

to

Channel

mode

simpli-

is

provided

frequency

to

provides a small

rate

of

the

of

the

trigger

of

sig-

rates

sweep

pro-

is

con-

refer-

handy

B

to

above

time

fre-

a

trols to

the

the Thus, rejected

to quency

Single-sweep

moves

sweep to view a overlapped displays ever,

input

shape,

be set to

Thus, a time,

l

apping display to be viewed may be contact

5.

Adjust

INTENSITY,

obtain a sharp

6.

If

there

is

any

TRIG

signal levels

LEVEL

which

undesirable

by

the

trigger

7.

Set

Trigger

obtain a more

triggering

d. Single-Sweep

operation

but

one

stroke

varying

and

unintelligible

being

superimposed

when

it

is

desired signal or

time,

which

the

SINGLE

by

commanding

the

SINGLE

caused by

accomplished

closures.

trace

multiple

control

best

actuate

signals

of

channel.

COUPLING

stable

display

signals.

Operation

means

until

waveform

to

view a

continually Sweep SWP

the

Mode

for single-sweep

but

one

SWP

position

multiple

and/or

manually,

FOCUS,

of

suitable

triggering

may

be

lesser

switch

when

that

reset.

display

on

one single

varies

Selector

stroke

eliminates

traces

recorded

or

and

ASTIG

con-

brightness.

of

the

sweep,

adjusted

the

amplitude

to

trigger

LF

using

the

time

to

select

circui

will

REJECT

high-fre-

base

be

Using a repetitive

would

result

caused

another.

display

in

amplitude,

switch

by

in many

How-

of

shou

an

ld

presentation

of

the

sweep

at

the

over-

and

enables

clearly.

through

the

Reset

external

t.

.

c.

Triggered

A

stable

pattern

can

be

obtained

mandatory

of

low in this triggering

of

operation

preferred

ance

When

repetition

manner,

impulse

condition

can

be

the

for

expected

oscilloscope

X AMPiifier,

forward be tensity retrace

sweep time.

properly

should

blanking.

adjusted

ceed as follows:

I.

Apply

nector

and

the

set Sweep

SWP.

2.

Adjust

sweep

and

the

play.

3.

Adjust

Y

VOL TS/

of

approximately

4.

R.otate controls TRIG

VARIABLE

DIV

to

obtain

LEVEL

Sweep

for

by

viewing

rate.

one

. Use

in

the

spot

not

be set so

For

desired

TRIG

POSITION

switch

5 divisions.

the

TIME/DIV

the

control

practically

using

random

When

triggered

all types

or

non-periodic

operating·

sweep occurs for

of

the

triggered

majority

under

of

which

this

instrument.

is

set for

of

applications,

optimum

anything

will be visible

The

INTENSITY

to

make

the

bright

triggered

Mode

LEVEL

signal

Selector

sweep

to

control

controls

control

to

obtain

in a vertical

and

desired

display.

if necessary.

of

signals

sweep. Its use

signals

the

instrument

each

single

sweep

mode

is

the

perform-

other

than

only

during

control

must

sweep visible. In-

as

to

override

operation,

the Y Input

switch

tu

initiate

to

center

conjunction

to

TRIG

the

with

the

pro-

con-

the

dis-

deflection

the

VARIABLE

Readjust

the

Selector switch to

is

RESET a trigger signal will

locked a single trace will sweep across

the sweep

beam will rest off screen.

should quires

The

ing trigger.

contact EXT contact Recording

accessory, 450A SET) Camera which has special

1.

Manual

To

arm

Reset

the sweep

button. The

occur

after

out

until

is

triggered

now be off

rearming

To

rearm

the

SWP

READY

the sweep

2.

R

emo

is

te R esl'l

Closure

The

sweep may be

closure

RESET

socket

closure

Camera

The

Type

4514

is

provided

Camera

to

of the oscilloscope.

only

requires

manually,

SINGLE

sweep

arrives

which

the

further

circuit

and

thus

(resetting).

sweep,

indicator

armed

By

and

Synchro

armed

introduced

located

may

be

such

Cable

to

the

rearming

the

connectors.

SWP

will

to

fire

the

incoming

is

rearmed.

at

the

The

indicating

push

in

lamp

ready

Shutler

remotely through on

supplied as

the

Type

Assembly,

connect

connector

The

Type

set

remain

sweep.

the

encl

SWP

that

the

will to fire

the

by

the

Type

2637

the

Sweep

and

depress

armed

In

other

screen

of

its travel,

READY

the

RESET

go

on

Conta

by

the

front

panel.

an

Oscilloscope-

450A.

available

Fairchild

4530-A.

Cable

Mode

the

until

One

sweep

triggers

are

words,

each

time

the

lamp

sweep re-

button.

on,

indicat-

the

means

of

two-contact

This

as

an

Type

(EXT

RE-

Robot

Assembly

a

2-6

operating

instructions - section 2

Multiple integrate expose

The mit

but

be seen by

single

-sweep

light

integration

If

the

Type

fully

open, exceeding pulses multiplied camera optimum nated permits intensity

In

applications must

be above the

simultaneous by several oscilloscopes these cameras vated and

shutter lem. Nevertheless, may

be

450A

Camera scopes single-shot

It

is Camera Applications

2-8.

SWEEP

a. Uncalibrated or Vernier Operati

The

TIME/DIV

sweep

than 3 to 1 is

sweep

therefore

I

minute whenever clockwise.

strokes

the

light

the

film.

recording

one

single

the

film.

technique

on

synchro-shutter

450A

Camera

the lens

the

maximum

plus

the

total

by a

shutter

graticule,

minimum

system

solenoids,

negated

in

suggested

VARIABLE

rate. A

stops.

speed

recording

trace brightness, the sweep

adjustments.

recorded

is

also

are

the

actuation

when

lens

the

system

recording.

Instruction

engineer

RATE

knob,

continuously

available

The

be

extended

full scale.

the

VARIABLE

of

the

oscilloscope display

output

system may now be

shot

Consequently,

film

need

factor

ease. A single

camera

where

to

avoid

applicable.

recording

to

time

all

is

permitted

and

that

Manual

CONTROLS

may

slow

sufficiently to

of

the oscilloscope display to

will

eliminate

and

phosphor.

contact

at

the

only

be left

time between sweep

sweep time.

of

1.5

and

system variations) to assure

exposure

only

a single

duplication

of a group

equipped

be triggered by electrically acti-

delay differential of solenoids

would

shutter

the

synchro switch

ready

you

consult

for specific details.

control,

be used to slow

variable

to give

end

of

from 2 sec/ div to 6 sec/ div

The

UNCAL control

application

closure

instant

The (to

setting

Many

with

present

actuation

to

arm

them

your

or

your

concentric

overlap

the sweep

is

may

improperly

arranged

multiple

is

open

sum

compensate

and

event

of the test,

systems

of

a difficult

all of the oscillo-

for

local

on

rate

lamp

not

to

per-

of stroke

provided

the

shutter

for a

period

trigger

should

of

the

illumi-

rate

then

oscilloscope

occurs

phenomena cameras.

time delays

in

simultaneous

Oscilloscope

between

range

will be

turned

and

require

prob-

the

Type

Fairchild

with down of

greater

may

fully

the

by

be

for

the

If

the the

the

or lit

out

this

control.

may

be

observed

When

expansion,

the pander for

sweep

is

Expanded

For

10

clockwise

the division second

Or,

2-9. SWEEP

Whenever the panel

This ence

To

or proceed

I.

CAL Figure

2.

3.

trol

(60-cycle line) in

Note:

for divisions.

For

and the

2-10. X-Y

the

TIME/DIV

factor of I 0 to

the

spot

rate

example,

mSEC,

PULL

is

per

. f I 0 msec/

using

Main

screwdriver

procedure

in

deflection

properly

between

as

Set

up

signal. Allow a

2-3.)

Set

TlME/DlV

Adjust

for precisely 6 cycles

For

precisely 5 cycles

400-cycle

adjust

calibrator

Any

portion

by

adjusting

instrument

the

sweep

rate

control

obtain

to move

may

be expressed as follows:

Sweep

the

to

XIO

I 0 milliseconds,

division.

the

Frame

follows:

SWP

DISPLAYS

Time

if

the

VARIABLE

CAL,

and

MAG

ormula:

CALIBRATION ADJUSTMENT

the

Time

and

inserted

SWP

is

necessary to

plate

normalize

the

plug-in

the

instrument

warmup

switch

SWP

CAL

JO

divisions.

50-cycle line,

of

line

, use sweep

CAL

control

display

in

of

the

POSITION

is

set

up

for

indicated

must

be

the

actual

one

division.

/ Div =

TIME/DIV

the setting,

-----

Base

CAL

sensitivities.

the

unit

front-panel

the

I 0 divisions.

TIME/DIV

control

POSITION

the

divided

10

Plug-in

in

control

compensate

gain

and

for

normal

time

to

10

of

the

adjust

calibrator

rate

for precisely 2 cycles

div

expanded

calibrated

by

the

divided

time

The

control

is

rotated

control

actual

by 10,

1 msec/

is

removed

another,

must

between the

Main

display

of

15

minutes.

mSEC.

screwdriver

calibrator

SWP

CAL

display

of

0.5 mSEC/

display

control.

sweep

setting

by

the

required

expanded

setting

10

is set

time

or

1 milli-

the

be

for differ-

channels

Frame,

of

display

control

of

ex-

fully is

in

per

div

from

front-

reset.

the

(See

con-

in

10

div

of

to

b. Calibrated Sweep

When

any

by a factor extends seconds/ div. desired screen

the

portion

the

segment

center

POSITION

of

the

of

10

fastest

Thus,

of

by

the

Magn

control

trace

may be

about

the calibrated to achieve a I

the

trace, set

POSITION

ificati

on

knob

expanded

screen center.

sweep

rate

OX

that

control

expansion

segment

is

pulled

horizontally

This

feature

to 5

nano-

to

and

then

out

of a

the

pull

,

CAUTION

KEEP

Screen resting

X-Y displays may be used to show sweep

generator

damage

at

one

plots, Lissajous

INTENSITY

can

result

point

on

from too

the

screen.

phase

LOW

intense a beam

measurements,

signal

curve

2-7

section 2 - operating instructions

trace

information

ship.

vVhen another signal the Time switch switch the

Plug-in to

Note:

set control gain

2-11. GATE OUTPUT

A positive available GATE

+ volts

optimum greater This devices in output oscilloscope.

Use

gered display though fier.

The measured counter. measure oscilloscope in the DIV

operator the are

2- 12. SAWTOOTH OUTPUT

A provides amplitude within the

The activities time tooth

ground

than tenuator

desiring

(not

to

the

X signal to

Base to X AMP

to

EXT.

Y Plug-in

obtain

When

up

for X

(red label) now

control

on a front-panel

OUT.

with

performance,

than

positive

order

of

such

of

the

pulse

generators

the

leading

no

signal

period

extremely

Since

ol

total

time

duration

and

the

to

display

entire

sweep.

thus

readily

BNC

front-panel

a positive-going saw

(nominal).

±5

volts

sweep.

sawtooth

controlling

base for associated

output

of

less

15

pf. Voltage take-off

Probe

and

other

to view

the

internal

Input

Plug

Amplifier

(green

gate

an

IOOK

gate

shou

than

connector

the

EXT

·-in. Set (green)

Adjust

and

the

The

output

pulse

to achieve sufficient delay to view devices

delay

of

the

sweep time, it

conjunction

VARIABLE

obtainable.

of

may be used for

is

the

VERNIER

an

appropriate

Type

operation,

functions

label).

coincident

gate

impedance

load

ohms

may be used to

completely

output

will

edge

of

is

incorporated

the

positive

accurately

period

of

Timing

Id

recommended.

input

the

waveform

connector

The

ground

an

not

100,000

of

X-Y

analog

be

similar

one

voltage

time

base)

on

the

INPUT

the

and

VOL TS/

74-03A

with

BNC

amplitude

shunted

in

permit

the

with a counter

sig·nals. Use

controls

accuracies

of

saw

and

loaded

ohms

through a Type

connector

Sweep

the

Trigger

DlV

control

display.

Time

the

as

the X VERNIER

the

connector

ol

impedance

by less

displayed

conjunction

this

pulse

gate

may,

with

gate

output

is

possible to use this

will

to be

of I part

labeled

approximately

output

is

time-coincident

initiating

plotter,

equipment.

by

shunted

signal

sweep

is

waveform

in

or

relation-

plotted

Y Plug-in

Mode

Base Plug-in

TRIG

750 ohms.

instrument

an

of

measured

impedance

against

apply

the

on

Selector

SOURCE

controls

on

the

LEVEL

output

labeled

greater

should

than

15

trigger

on

with

the Y Ampli-

of

course, be

electronic is a direct

to digitize

the

TIME

permit

in

SAW

OUT,

25

is

referenced

delayed

acting

The

by

no

4290 At-

and

the

on

than

For

be

pf.

other

the the

trig-

to

even

the

over

107

volts

with

as saw-

to

more

X

a

2- 13. TIME MEASUREMENTS

a.

How

to

Y

is

/

Using the

Any

horizontal

scope can be used to

time when

brated of this elapsed time

the display.

follows:

I. Using

zontal distance in divisions

the display whose

2.

Step I by

time interval. See

b.

The can be expressed unit

of use the oscilloscope for or

frequency

I.

zontal distance in divisions the disp lay

2.

Step I by

3.

Step 2

quotient cycles

the sweep feature

To

Multiply

the

Figure

How

to Find Repetition Rate of Frequency

Using the

repetition

time

Using

Multiply

Take

the

under

the

(that

is

the

per

second. See

Cycles/ second =

Make

Elapsed Time Measurements

CRT

Scale

distance

time-base circuits

(VARIABLE

permits

between

measure

the

calibrated

time

the

horizontal

TIME/DIV

Figure

ELAPSED

represent

you to

the

desired

the

interval

control

2-4.

TIME

T

I

M

E

on

the

control

accurately

time

scale,

between

dimension

EQUALS

a precise

you wish

s

HOR

DEFL-+-1

IN

DIV

2-4

. Elapsed Time

CRT

Scale

rate

or

fre4ue11cy for

as

the

number

(VARIABLE

measuring

of

periodic

calibrated

observation.

the

horizontal

TIME/DIV

reciprocal

is,

divide

desired

frequency

Figure

it

control

signals,

scale, occupied

dimension

control

of

the

into

2-5.

Time

of

product

one).

or

screen

setting

of

are

set

set to

point

of

interval,

measure

that

:

the

interval

up

for cali-

CAL).

measure

interest

proceed

the

portion

to

find.

obtained

to

obtain

oscillo-

of

Use

the

on

as

hori-

of

in

the

YTL

Measurement

periodic

cycles

set

to

the

repetition

proceed

measure

by

setting.

The

repetition

1

(seconds)

signals

or

pulses

CAL).

as follows:

the

one

cycle

obtained

resulting

rate

per

To

rate

hori-

of

111

in

2-8

REPETIT

ION RATE

EQUALS

OR

T

M

E

s

FREQUEN

THE

CY I N CY

REC I

PROCAL OF:

-1No

HOR

OF I CY

CLES I SECOND

OEFL

1v-

CLE

operating

4.

Position

slopes crosses hand

side

5.

Measure

cycle

of

the

6.

Measure

display.

distance by 360° . between

7.

Label

Divide

Phase-shift

instructions -

the the

of

the

waveform.

the

this

the

measured

The

resulting

the

two

display horizontal

scale.

horizontal

horizontal distance

distance

in

sine

difference

so

Label

B.

measured

step 6 and

product

waves. See

that

one

center

distance

this

distance

shift

of

multiply

is

the

Figure

=

cp

=

section

of

the

positive

line

at

the

occupied

the

in

step

phase

2-6.

~

A

A.

Channel

5 by

the

quotient

difference

360°

by

2

left-

one

B

the

Figure

2-14.

PHASE-SHIFT MEASUREMENTS

To

measure

waves,

sweep

and Amplifier.

cycles

1.

2.

3.

Set

Apply

the

Adjust

proceed

operation.

other

of

the

up

one

Set l\I

display

2-5

. Findi

the

phase

as follows:

the

Time

of

the

to

Channel B lnput

ODE

switch

the

Tll\TE/DlV

on

ng

the Frequency

difference between two srne

Base for

sine

the

externally

waves to

of

to

ALT.

switch for a

screen.

triggered

Channel A lnput

the

Type

couple

76-02A

of

Fi

-

gure

2-

6.

A----•

Phase-Shift

-+--

/

I

Measurement

s

2-9

NOTES

SECTION 3

CIRCUIT DESCRIPTION

3-1 . INTRODUCTION

To

simplify

Time

Base Plug-in,

diagrams

Figure

The

timing

points

In provided.

mentioned

interrelation ation. the

circuit

3-2

from switch

external

RNC

Y

side

provided

AC

pass filter

a low-frequency cutoff

quency

and

RS I

disconnected

directly

The

grid

cuit

Shunt

signal

in

addition, a capsule

The

circuit

It

rear

description.

. TRIGGER CIRCUIT DESCRIPTION I Figure 3-1 I

a. Trigger Input

The

input

one

as follows:

I.

Jn

connector.

2.

In

Amplifier.

3.

In

of

the

A choice

position,

is

the

04.

RC

of

VS

from

capacitor

component.

circuit

are

provided

3-1.

Trigger

3-2.

Sweep

3-3. X Deflection Amplifier,

3-4.

Timing

the

circuit

description

illustrations.

of

is

also

of

the

manual

to

of

three

EXT

position,

source

INT

position,

LINE

position,

6.3 VAC of

by

the

consisting

raised to

high-pass filter now consists

In

the

and

to

the

input

network,

I I

or

damage

description

functional

as

follows:

Circuit,

gram

Generator,

Diagram

Block

Diagram Diagram,

Base

diagram

circuits

recommended

the

through

AC,

Trigger

DC

VS

CS I

shows waveforms

and

in

description

will be keyed to

Emphasis

rather

be referred to in following

trigger

sources via the

the signal

the

the signal

heater

LF

REJECT

COUPLING

trigger

signal

of

CSl02

of

15

Kc in the

position, the high-pass filters

the

triggering

cathode

RS I

OS

and

12,

serves to

due

to excessive

04

preserves

of

block

Functional

Simplified Block

Type

proper

EXT

signal

circuit.

SO

time

of each waveform

is

than

on

that

circuit

Trigger

is JNPUT

is

or

is

applied

and

cycles.

LF

REJECT

signal

follower

CS

I 04, in series to

protect

the

obtained

RSI07,

the

Type

and

74-03A

relationship.

placed

detail

schematics

may be selected

derived

tapped

DC

coupling

switch.

The

of

VS! I and

the

input

high-frequency

74-03A

waveform

Block Dia-

Functional

Time

at

critical

is

the

afore-

on

the

of

oper-

at

the

SOURCE

from

an

front-panel

from

the

from

one

In

the

to a high-

providing

cut-off fre-

position

CS

103

and

are

is

applied

VS12.

the

input

cir-

voltage.

b. Trigger Amplifier

The

triggering·

input

cathode

going

signals,

and

for negative-going signals,

the

gTid

of connected the TRIG used to select settings

trigger output taken impedance-matching drives from this stage drives

former

cathode justment

w~en

mrnus

regenerative of a two-stage coupling emitter

and ing to times from

is

mines ation cutoff. QS106 will of a positive-going signal the hold cutoff to full

taneously, QS106 will Transistors original

tion conduction

moving when

of

The

output

amplifier from this

from

the

TS

The

TRIG

voltages

of

the

or

vice versa.

c.

Schm

itt Trigger Generator

The

Schmitt

from QS105 to QS106

coupling.

The

circuit

QS106

and

QS l 05

the

other

The

voltage

which

as follows: QS l 05

threshold

level

condition

signal falls

ln

general,

the

moving

signal

is

follower VSI l

connection

VS l 2.

Jn

each

to a

de

bias source,

LEVEL

the

Schmitt

l 01.

the

Trigger

amplifier

at

each

state

is

QS l 05

for QS l 06.

base in a positive

control

the

level

Trigger

from

LEVEL

has two

cutoff;

at

is

level

exceeded,

conduction

the

SLOPE

VS QSIOI amplifier

collector

emitter

Trigger

of VSl l

TRIG

SLOPE

Trigger

signal level selector.

amplifier

stable

and

cu to

ff.

abrupt,

side

of

applied

the

circuit

remain

of

and

when

slightly

threshold

base in

of

I I

the

CENT

The

the to

is

conduction.

applied

is

the

and

of

and

LEVEL

Generator

having

conversely, QS106

producing

conducting

at

applied

an

will promptly QS l 06 will

the

below

the

to a high-impedance

or

VS12.

made

to

the

connection

case,

the

opposite

adjustable

RSI03F.

triggering

switch.

or

VS

QS102.

is

always

QSlOl

follower QS l 03,

Generator.

Trigger

potentiometer VS12 so

switch

and

states:

transition

circuit.

the

will be in.

cutoff

abrupt

occur

amplitude

voltage

negative

This

12

is

negative

and

Coupling

control

is

set

Auto Triggering

is

de

collector-to-base

and

QSI05

fast rise

base

of

and

until

to its base reaches

When

transition

in

stop

revert

the

threshold

is

direction,

applied

The

applied

de

from

the

Q8106.

direction.

For

positive-

grid

of

is

made

grid

by

means

control

point

for all

to

resulting

and

which

The

output

sets

that

no

is

required

from

plus

essentially

It

consists

emitter-to-

conducting,

conduct-

one

and

QS l 05

Assume

QS l 06

amplitude

this thres-

Simul-

conducting.

to

of

the

initia-

level

higher

and

VSl

to

of

the

to

an

trans-

the

read-

to

state

fall

deter-

oper-

is

at

from

their

of

when lower

The

l,

is

a

3-1

section 3 - circuit description

2(;~

I

I I

27~

TR

X INPUT

AM

PU Fl ER

IG

OR

e-----

SCHMITT

TRIGGER

G

ENERAT

----

OR

HORIZONTAL

---

DEFLECTION

Figure

two

different volt

lower

hysteresis erator. input

peak-to-peak

The

age levels

limits"

hysteresis offset basically relates to

voltage

system.

The

initial anywhere establishing

state

of

Q8l05

LEVEL

The

Schmitt output period will

current

of

follow

When

AUTO

to

other

SWP,

R8137

end junction up

and

down

the

charge-discharge

triangular

Q8105

and 50 pulses horizon even

ta!

in

base level

inside

the

transistor

is

normally

control

the

input

at

rates

the

Sweep one

(low

is

connected

of

RS 142

like

waveform

Q810(i

per

second

reference

the

absence

or

outside

input volt

QS l 05.

setting. Trigger pulse

whose

triggering

above

Mode

end

of

resistance

to and the

end

cycle

developed

Lu

flip

in

trace

of

RS 143.

an

Using· AUTOmatic

plug-in

though

3-3.

of CR8202. and

amplifiers

one

or

SWEEP CIRCUIT DESCRIPTION

(Figure

a.

The

Sweep

3-2)

Gate

input

transistor

The

Q8202

initiates

will still

more

signa ls

Multivibrator

triggering

Q8206

de

coupled

the

through

3-1.

are

called

of

the

Schmitt

sensitivity

of

QS l 05

of

the

age

required

The

steady

determined

Generator

width

signal.

I 0 megacycles.

Selector

capacitor

path

to

the

base

This

of a "diving

of

CS 114.

at

back

and

the

AUTO

will

appear

input

signal.

triggering

permit a display

is

disconnected.

signal

is

series-coupling

bistable

multivibrator

formation

Trigger

and

the "upper

Trigger

X Input Circuits, Functional Block

and

Gen-

the

of

can

be

hysteresis

to

state

by

the trig·

positioned

change

the

ger

area

thus

the

base bias

TRIG

provides a negative is a function

This

switch

C8114

ground)

of

QS l 05

junction

board"

The

this

junction

forth

yielding

position.

on

with

of

the

generator

is

set

is

connected

and

the

and

to

the

oscillates

due

resulting

causes

about

Thus,

the

screen

Multi-Trace

even

applied

tu

the

base

diode

Q8201

of

the

swe

ep

after

to

a

receiving a negative Generator. off

subsequent and Q8201

forms a positive

gate

CR8202

Diode

retrace are

is

conducting

during

the

serves as a low

CR8202

triggering

completed. In

gate

forward

which couples the Trigger which as a high generator bistable runs up. turn-off vibrator

saw. The

adjusted

b.

The The Q8202 diodes CR8206, voltages unlocks

sweep CR821 The

Generator

Hips

and

initiates

back-impedance

from the sweep

multivibrator

When

the saw reaches fu

diode

CR8203

Q820 I

and

SWEEP

for full screen sweep le

Saw

Generation

saw

generator

negative

is

output

applied

CR8207

of

these

diodes

the

integrator capacitor I,

the associated resistance

latter

to

transistor

vulLage source, via

control.

The

timing

cathode

here to RC work

follower V82 I. A

provide high

network. High

prevents ting a highly when

large

capacitor

extraneous

linear

charging

Diagram

trigger

from

and the

signals

and

Q8202

while

Q8202 forms a

sweep

interval.

capacitance

negative

to

the

trigger

sweep

sweep.

diode

gate

multivibrator.

has

been

conducts

Q8202,

LENGTH

is

which

potentiometer

of the

developed

to the anodes

and

no

longer

clamp

charge

is

an

and

linearly

emitter

rnanipulation

is

connected

cathode

impedance

current

charging

voltage

resistors are

the

Schmitt

lockout

until

after

the

quiescent

is

at

cutoff.

coupling

from

gate

multivibrator

CR8202

to

decouple

triggered,

II

screen deflection,

and

resets the

then

ngth

display.

Miller

at

the

of

"run-up

collector

the

CR8209.

conduct.

permits

through

network,

follower

of the

to

follower is

for

the

sweep

coupling

used

drain,

to

.

for

thus

be

Trigger

circuit

the

hold

sweep

state,

Q820

negative

diode

the

Schmitt

also serves the

trigger

After

the

sweep

multi-

clamps

R8269

" type.

disconnect

The

anode

This

action

the

selected

Q8205,

and

Q8401.

adjustable

SWP

CAL

a

nuvistor

employed

timing

this

permit-

developed

I

the

1s

of

net-

3-2

o!

s~:GPL c

I

circuit

description-section

3

When move in tends at lector.

emitter

is

applied Zener ence

to assure tive

capacitor

negatively timing to by tor.

Since the

tial

through

the rate. The plied output

\tVh SINGLE isolated from R8218. the

its travel,

the

grid

side

the

negative

to

move

likewis

the

base

of

Q820i:

The

positive-going

follower Q8205

to

the

opposite

diode

CR821 I

between

voltage

straighten

maintaining a constant

within a small

sweep

to the

en

screen

the

collector

minimum

swing

tends

to

.

lt

also increases

capacitor

the charging

emitter

the

SWP, the saw turn-off

Thus

is

out

th

grid

ol

timing

resulting

when the beam

capacitor

horizontal

follower

Sweep

the

SWEEP

only a single

the

of

the

timing

direction,

e.

This

produces a negative

and

a positive swing

voltage

and

zener

side of the

maintains

Q82(H

voltage

on

prevent

trying

e c

V821

linear

sweep is triggered.

at

the

opposite

the

to charge. The net

harging

current

remains

fraction

resistor

thus

sawtooth

deflection

Q8205 .

Mode

will rest off screen becaus e

Selector switch

LENGTH

tra

capacitor

the

cathode

is

coupled

diode

CR821 I,

timing

a fixed voltage differ-

and

the

grid

the collector.

side

of

grid

side from

voltage to which

curve (sweep voltage)

flow

into

at

a co

nstant

of

a volt, the

remains constant

charges

ce

will now sweep across

at a constant

waveform

amplifier

diode CR8203

potentiometer

At

starts ol

V82 l

swing

at

its col-

through

and

capacitor.

of

V82 l

The

posi-

the

timing

swinging

the

result

the capaci-

poten

current

and

is

ap-

through

is

set to

by

the e

nd

the

to

is

of

sweep The a negative pulse to ol

the sweep

sweep,

ing niqu

c.

The

for

any

ol

the

tion

e

mitter

CR8203.

If

-

set,

going

11

divisions will then be base

sweep

original cutoff. returns CR8209 timing its

qui

after

gate

multivibrator

single sweep

forward

push the

Instructions

e.

Sweep

sweep le

given sweep

SWEEP

of

the

follower Q820

the SWEEP

diode CR8203

excursion

ol

Q8201.

gate

state

The

th e

to their

capacitors.

esce

the

lockout

RESET

Section

Length

ngth,

LENGTH

positive sawtooth

LENGTH

of

on the screen.

conducted

Upon

multivibrator

with positive disconnect

conducting

nt

level

rime

blanking

turn

off time.

or

the

rate

3,

will

the

sawtooth

receiving

Q8201

step

diodes

The

!\filler circuit

and

is

int

Figure

Functional

button. for

is

and

conduct

through

from the collector

ready

erval

3-2.

Block

is

locked in this

amplifier

the

beam

To

application

total

determined

adjustment

voltage

the

potentiometer

This

will

conducting, and

CR8206,

state,

for the

is completed.

Q8208

at

the

reset

Reler

duration

R8229. A

is

feel

saw

when

has

travelled

positive peak

diode

CR8203

this positive

revert

thus

discharging now

Diagram

position.

provides

completion

or

rearm

to

the

Operat-

of

this tech-

of

the

by

the

back

turn-off

is

properly

the

positive-

pulse, the

rapidly

Q8202 of

CR8207,

returns

sweep cycle

Generator,

the

sweep

setting

por-

to

the

diode

10.5

to

signal

to

the

to

its

at

Q8202

and

the

to

3-3

section 3 - circuit description

d.

Lockout Circuit

The

lockout vibrator settled retrace integrator

switch circuit

flipping

quently,

to retrace mitted

which

the

cathode suitable completion

positive emitter capacitor

from

to its

in

zero timing

circuit

discharge

of

the

prevent

interval.

to

re-establishes

CRT

screen.

of

positive

During

the sweep follower Q8203,

through

retrace

of

saw reaches its sweep

gate

multivibrator integrator During

off

and

R8213.

trigger chosen has

returned

which

the

return-trace

the

The until to

give

discharged.

The

required determined the

Miller

DIV

switch

off

timing

The

gers from

ing

all

circuitry

by

integrator

must

capacity.

trigger

disturbing· the

of

the

prevents

interval.

The

front-panel adjust Q820 Sync down

the

duration

I.

The

Adjustment

and

lock-in

5 megacycles

e.

Unblanking

The

cathode-ray

has

two

additional beam

off"

the

electron

grid.

Beam

control

trace

blanking

th

ese

beam

deHection

ground.

pulses

In

must

be

circuit

being

retriggered

quiescent

time

since

capacitor

having a small

(saw

the

sweep

trigger

the

excitation formation The

sawtooth

completely

the

This

is

the

series-trig

voltage

the

sweep

forward

sweep

voltage

coupl

predetermined

then

lockout

sweep

the

to rest

capacitor

gate

preselected

lockout

at

beyond

duration

the

sweep-charging

clamp.

also

change

coupling

sweep-forward

retriggering

HF

STAB

of

the

HF

ST

AB

and

its

of

signals

or

greater.

tube

beam

pulses (trace

pulses)

can

plates

conventional

coupled

prevents

the

until

base level.

the

The

clamping

is

accomplished

impedance.

retrace)

gate

multivibrator.

takes

pulses

ol~

a

new

waveform

to

beam

at

the

accomplished

gering

for a

diode

given

.

interval, a portion

is

fed back to

which

ing

diode

charges

CR8204.

full screen

flips

and causes interval,

the

diode

is

discharged

multivibrator

lockout

the

time

its

initial

of

the

starting

lockout

Consequently,

lhe

lockout

diode

CR8202

sweep

gate

interval.

during

control

lockout

control

period

thus

application

having

employed

in

deHecting

independently

brightening

easily be

are

electrically close to

cathode-ray

to

the

control

sweep

gate

the

sawtooth

sweep does

of

the

Miller

by a

The

timing

longer

than

Conse-

must

be

held

saw

during

must

be per-

its

quiescent

left-hand

by

side

holding

CR8202

period

after

of

the

base

of

the

lockout

When

length,

clamps

sweep to

the

Miller

retrace.

CR8204

throug·h

will

not

timing

that

capacitor, the

sweep

point,

interval

time

constant

the

TIME

circuit

prevents

multivibrator

The

lockout

the

retrace

may be used to

that

initiates serves improves

repetition

as a HF

count

rate

this oscilloscope

plates

which

of

the

control

and

de

coupled

tubes, these

grid

which

multi-

has not

diode

the

off

the

base

of

the

at

the

the the

is

cut

re-

has

is

and

hold-

trigdur-

of

"cut

re-

since

is

a

/

operated plates are Q8201

The Q8201 the

and sweep forward

panel negative pulse

applied tube display val

and

positive

of

base of

Q8406.

connector

to

through

is

and

is

at

high

controlled

Q8202.

the

sweep

the

unblanking

This

time

developed

the

beam emitter

visible

blanked

potential.

by

pulse

developed

gate

signal

and

labeled

deflection

follower

only

during

The

extra

the

sweep

at

multivibrator

cascode

is

coincident

is

also

available

GATE

at

the

OUT. collector

plate

Q8409.

the

forward

the

retrace

beam

gate

multivibrator

the

is

amplifier

The

of

the

Therefore

and

lerval.

The

negative Q8209 and the the

or permits the the

RECUR its anode.

to

Q820 l the sweep

is

applied

R8205.

proper

Dual

Trace

This

Time

Y cavity

retrace

cathode-ray

vertical

f.

Recurrent

When

the Sweep

SWP,

This

fall far

enough

and

sweep reaches its

gate sweep retraces. period time the enough

whose

of

the

lockout

again, free-running sweep time of

the

TIME/DIV

3-4.

HORIZONTAL DEFLECTION CIRCUIT DESCRIPTION

(figure

The

output applied frequency

able

the

to

compensated

The

POSITION

de voltage to

display PATTERN the

front

panel trically X

entire on

coupled

and

Y Plug-ins.

display

the

screen via use

pulse

to a differentiating

The

output

trigger

to

the

plug-in.

Base

Plug-in

of

the

Main

beam

blanking

tube.

Therefore,

direction

Sweep

will

Mode

diode

CR820l

permits

to

trigger

Q8202,

and

predetermined

generator

duration

lockout

voltage

The

the

is

sweep

is

capacitor

at

the

cycle

sweep whose

plus

the

lockout

switch.

3-3)

from

the

base

of

control

the

base

on

the

screen.

POSITIONING

of

the

to

the

POSITION

This

feature

in

the

horizontal

of

developed

at

the network

from

this

network

blanking

unit

Frame.

multivibrator

may-be

Only

used

the

signals to be

show

sweep

the

operation

sweep retrace.

Selector switch

is

cut

off by

the

cathode

the

thus

sweep

initiate

of

diode gate

a sweep.

turn-off level,

reset

through

retrace

delermined

through

cathode

is

repeated.

period

time

saw

emitter

voltage

CR8203

starts

by

the

R8213.

of

CR8202

The

is

the

at

any

g·iven

follower Q8205,

follower Q8301 via a

divider.

supplies a manually-adjust-

of

Q830 I for

For

the

Type

766 Series, a

Main

control

Frame,

is

mounted

and

control

permits

and

the

sing-le joystick

positioning

vertical

deflection

collector

applied

Q8407

with

at

a front-

resulting

of

Q8206

cathode-ray

sweep

inter-

lockout

emitter

C8205

provides

in

the

X cavity

coupled

is

set to

grounding

CR8202

generator

When

and

the

lockout

discharge

When

falls far

result

total

is

of

setting

positioning

it

is

elec-

of

both

the the

directions

control.

of

to

the

is

the

in-

of

X

to

in

the the

a

the

is

on

3-4

INPUT

SWP

SELECTOR---------!

SWITCH

circuit description - section 3

FROM

The

output directly Q8303, pull follower output amplifier for

to

which

output.

Q8305

amp

stage,

driving

Ten-times plished feedback the X 10 rate effectively TION

by

of

control

observed

magnified

potentiometer voltage level of

the

trace tioned switch

from

is

activated.

XlO

-

0---0"1

3-3.

emitter

single-end

and

from

the

common

converts

The

REGISTRATION

Figure

the

signal progresses

and

Q8306,

lifier Q8307 to Q831

the

signal

develops the necessary

the

horizontal

magnification reducing Q8302

on

is

pulled

the

and

deflection plates.

ol

the

common

Q8303, by a factor

out.

Consequently,

screen

of

the cathode-ray

ten times.

at

the

CRT

the

R831 l

base

center

screen

is

of

Q8303 so

of

the

center

PULL

XIO

Horizontal

ol

Q83,ll

amplifier

input

through

is

then

l.

In

the

sweep

emitter

The

XlO

provided

that

screen

when

the PU

I

I I

JR

I

1

MAG

6

Deflection

is

applied

Q8302

to a push-

emitter

applied

this

is

amplifier

of

10

the

REGISTRA-

to

adjust

the

portion

is

not

deposi-

LL X 10

NETWORM.

and

to

the

output

power

accom-

when

sweep

tu

be

the

X1

Amplifier,

is

X AMPL

LEVEL

Functional

vVhen

AMP,

tions

TRIG

the

as

the X Amplifier

LEVEL VERNIER circuit

follower

Q8101

output

via

3-5.

serves

VS and of

this stage

the

X Al\f P

TIMING DIAGRAM !Figure 3-41

A

timing

Block

Diagram

Sweep

EXT

INP

Mode

UT

control

control. A portion

as

the X

preamplifier,

11

and

VS

12;

Q8102,

diagra111

and is

setting

emitter

coupled

of

the Plug-in shows waveforms cuit

and

in

tion, a

proper

capsule

relative

description

provided.

Selector switch

BNC

connector

input.

becomes

the

at

Simultaneously,

the

X

of

the

trigger

viz:

Input

Horizontal

follower

to

the

preamplifier Q8103.

horizontal

Sweep Selector switch.

Type

74-03A

critical

ti111e

points

relationship.

of

each

waveform

HORIZONTAL DEFLECTION

PLATES

is

set

to

now

func-

AMPiifier

input

cathode

The

circuit

Time

Base

in

the

In

addi-

X

the

cir-

is

3-5

section 3 - circuit description

INl'UT TRIGG

ER

AT

Vil

1

OUTl'UT

AT

SCHMITT

TllGGER

GENERATOR

0110.S &

01106

I

+

GAT£

AT

Jl201

Ji-----__

I

- GA

TE

AT

08202

·C.

AT

{DRIVES

08205

SWEEP

MlllER

1.____

TO

HORI

·

GATE

GEN

INTEGltATORI

SAW OUTl'UT

ZONTAL DEFlECTION AMPLIFIER

L

TllGGER

OUTPUT

HQU>.

Off

SIGNAL

Hl.5• & CRl202

MATUltE TRIGGERING DUR

WAID

VALS

TURN-

SAW

&

08202; REVERTS

INITIAL CONDITION

DIFFERENTIATED PUL

TRACE BLANKING

SWEEP

OFF

SIGNAL

OUTPUT

UNllANICING DEFLECTION

. PR

AND

FED

TO

SWEEP

MULTI

AT

DUAL-

TR

IGGER

AT

JUNCTION OF

EVENTS

PRE

ING

fOR.

RETRACE

INTER

BACK FROM

MULTI

08201

TO

PULSE

TO

f't.ATES

OF

SE

FOR

DUAL

Cl205 & Rl205

TRACE BLANKING

OUTPUT

-

I i

BEAM

CIT

11

I

I l I l

·

,~----'

1 i i

i

I I I

1

_r

~---

'-----

I !

__

L

_--J1---r-

----'

~----

GATE & SAW

GENERATOR

DUAL

TRA

BLANKING

CE

3-6

DUAL-

TRACE

CRT

CATHOOE; BLANKS

SWITCH

TRANSIENTS

BLANKING GATE TO

ELECTRONIC

--

1 _

figure

3-4

. Timing

___,h~

Diagram

of

Type

_

74-03A

__,h'----

Time

Base

Plug

-In

SECTION 4

PERFORMANCE ASSURANCE

4-1. MAINTENANCE

PERFORMANCE

Th

e tests descr should and

formance. simplification complete equipmen grap

766H

fier Plug-in.

ized accomplish SWP CAL and appropria

60 justments.

4-2

formed cycles displayed

of

be per

Maintenance

These

checking

t is not

h 5-5,

for

All tes ts

minutes

If

I

nspection are instrument at extreme necessita te Hence, t

ry recentering the con trol th

eir

p

recision tests outl instrument assistance representative

. INITIAL

If the

The

the

are

Series

to

the

ed

te Plug-in

this

Plug-in

recommended

the

fac tory.

environments,

it

the

recommended

range

ined

contro

in the

of the cali

on

procedure

Type

ibed iu the

formed

Laboratories

tests

and

availab

lis t

of

performed

Main

Frame

Both

of

Main

Frame

by

adjusting

GAIN

of

warmup

module

laborator

has

been

minor

is

suggested

and

ins t

rument. If, aft

in

will

not

of

the

local

should

SETUP

ls

are

sequence

brator

screen.

just

74-03A

CHECK

by

to assist those test

is

not

test

the

ADJ

Instruction

to

Nevertheless,

adjustments

to

familiarize

the

perform

OF

set

given

Time

TO ASS

paragraphs

Instrument

are

divided

mandatory, or le.

Refer

equipment

with a representative

Oscilloscope

plug-in

before

the controls

time

NOTE

is

checked

y,

the

certify

thoroughly

or long

that

the

adjustments

s,

but

paragraphs

Fairchild

be

requested

TYPE

exactly

indicated

signal

is

Base

Test

to certify

to

required.

units

starting

front-panel screwdriver

as described

Manuals

before

tests

outlined

performance.

tested

rough

idle

of

certifying

also to himself

er

performing

to

specification,

Field

74-0JA

as

in

(60-cycle line)

a good, over-all check Module

URE

Departments

prop

into

sections for

groups

where

Section

and

a Y

must

be

tests.

. Allow 30

making

by a

Receiving

and

shipment,

periods

the

controls.

engineer

not

only

ascertain

with

to

follow,

Engineering

.

shown

Figure

.

to follow

er per-

where

all test

5,

para-

Type

Ampli-

norma

l-

This

is

in

the

to

any

ad-

below

This aged

may

for

this

all

the the the

and

per-

4-1, three

will

be

2.

Set

up

the

instrument

ac

curacy

the

Make following tional

should

4-4

TRIG

Sweep Trigger SOURCE Tr

igger

Tri

gger TIME/DIV TIME/DIV VARIABLE PULL POSITION VOLTS/DIV

2. Six cycles observed 50-cycle line.

3. pattern

4. display

5. peak-to-peak amplitude the

tionary ably AC sensi ti vi ty.

6. plus first cycle

7.

SLOPE

4-5. CHECKING SINGLE

is

che

cked by c

centered

sure

data

fall

. CHECKING TRIGGER

I.

Preset

LEVEL

Mode

COUPLING SLOPE

XlO

Set

shou

App

sweep,

on

attenuated

coupling

Changing

to

Reset

8-division

the

UNCAL lamp

Sweep

. All within

Control

MAG

on

the

remains

the

ly a

of

and the

minus

from

switch

Check

measurements

± 0.

front-panel controls

Selector

(Y

Plug

-in)

of the

the screen

Trigger

stationary

Trigger

ld

disappear.

line

frequency

to

the

EXT

this

signal

the

pattern

screen.

by

the

and

represents a true

the

Trigger

should

positive-going

Trigger

to

SOURCE

plus.

25

SOURCE

The 0.25

change

TEST

for

ounting

portion

is

Calibration

indicated

div

of

the

SOURCE

Zero

TRIG

LINE

AC

+

10

mSEC

CAL (fully ccw)

Pushed Centered CAL

calibrator

for 60-cycle

SOURCE

on

the

sine INPUT

should

80-cycle

cutoff

SOURCE

the

to

SWEEP

AUTO

the

off

as

SWP

switch

wave

be

volt

negative-going

switch

sweep.

positive

of

the

and

Chart

9-division

AND

indicated

Setting

in (Xl)

pattern

line

; 5 cycles for

to

screen

.

to

signal

connector.

sufficient

again

test

signal

frequency

measure

switch

leading

to

CRT refer

in

POLARITY

remain

edge

Sweep

peaks

scale.

to

for

this

chart

marking.

:

should

INT;

EXT;

of

0.25V

to

trigger

is suit-

of

trigger

from

of the

.

INT

in

the

addi-

be

the

The

sta-

the

and

4-3

. CHECKING

I.

Connect a Time-Mark connector minated

of

the Y Plug-in

cab

le.

SWEEP

CALIBRATION

Generator

through a properly

to

the

Input

ter-

I.

of

the

2.

SWP.

Adjust

calibrator

Set

Sweep

The

the

instrument

display

sig·

nal

Mode

on

to

on

the

Selector

screen

obtain

screen

switch

should

at

least

10

.

to

SINGLE

disappear.

cycles

4-1

section 4 - performance assurance

To

obtain

the

calibrator

display,

set

the

controls

is

experienced to

misalignment

exactly

the

numbered

steps

in

sequence.

Use

the

same

procedure

when

This

will

eliminate

"cockpit"

difficulty

troubles

due

(

test

as

shown

when

obtaining a display.

of

controls.

and

perform

766H

•

Readjust INTENSI

& AS

pattern.

center

Set

(VOL T

Rotate

inner

(VARIABLE)

The

front-panel

controls

proper

ly

screen

trace.

Y Pl

ug-in

TI

G controls for a sh

Readjust

the

display

outer

knob

S/D

IVI ta

kno

b

fully clockw;se

NO

TE

screwdriver

on

the

Y PL

adjusted

to

See

Instruct i

on Book

CAL

UG-

obtain

the

appropriate

TY,

FOCUS

@

®

8

~

BAL

in must be

on

on-

arp

to

..

INTENSITY

fOCUS

Set

ASTIG,

TENSITY

of

range

FOCUS, & IN-

controls

to

center

0

Rotate

clockwise

to

turn

knob

heard).

off

(VARIABLE)

until

on

switch

Note

that

is

•

TIME

BASE

ftp[

-·

7'43'

· -

(2\

Set

outer

knob

'\.:::)

Mode

AUTO SWP

Selector)

(Sweep

to

the

oscilloscope

Set

outer

knob

(TIME/DIV) to 5

mSEC

Rotate

inner clockwise actuated

(click is

UNCAL

lamp

Set

TRIGGERING

switches

to

LINE

to CAL

is

...+

, DC,

4-2

Figure

4-1 .

Initial

Setup

of

Type

74-03A

Time Base

Plug-In

3.

Set

the Depress READY

4.

Set

note

that

light

should

the

light

the

TRIGGER

the

TRIGGER

Reset

turns

sweep fires turn

off

button

on.

SOURCE

only

at

the

SOURCE

and

note

switch to

once.

conclusion

The

sweep cycle.

5.

Repeat

6.

After

blanked

Steps 3

each

sweep, check

(naked

and

4. that

screen) before

the

exposing

photo-recording.

SWEEP CHECK CALIBRATION

CHART

performance assurance

switch

scope

that

SWP

of

is

to

EXT.

the

SWP

LINE

and

READY

the single-

properly film for

the

screen

and

should

proximately

4-7.

DUAL TRACE SWITCH TRIGGERING CHECK

y2 division.

IOPTIONALI

This

check

is

optional multitrace Y

amplifier module. whether

Module

(dual

The

it

when

Plug-in

Time

will

the

display.

I. Preset

front-panel

test

have

and

trace etc.)

is

to be used

Base

Module

trigger

latter

unit

controls

- section 4

a vertical deflection

is

only

required

electronically

with

this

is

set

up

to

the

Dual

Trace

is

set

up

for

as

indicated:

of

when

switched

Time

Base

determine

Amplifier

alternate

ap-

a

TIME-MARK

set

to

10 Mc 10

Mc

5

Mc

1 µsec 1

µsec

1

µsec

5

µse

10

µsec

10

µsec

50

µsec

100

µsec

100

µsec

500

µ

sec

1

msec

1

5 msec

10

msec

10

msec

50

msec

100

msec

100

msec

500

1 sec 1

sec

*

Centered

**Expander

pulses in

parenthesis.

4-6.

CHECKING

I. Set Sweep

and

the

VOL TS/

A

horizontal

screen.

2.

Set

PLING

3.

switch

Apply through Input

rnnnector.

GEN

sine

wave

sine

wave

sine

wave

morker

marker

c

marker

marker marker

marker

marker marker

marker

8-divisian

check

between

10

Neglect

AUTOMATIC

Mode

DIV

reference trace

Trigger

to AC.

the

IV

the

Type

The

TIME/ DIV

set

to

0.05 µSEC

0.1 µSEC 9 cycles

0.2

µSEC

0.5

µSEC 5

1 µSEC 9 2 µSEC

µSEC

5

10

µSEC 9 µSEC

20 50

µSEC 9

0.1

mSEC

0.2

mSEC

0.5

mSEC

1

mSEC 2 mSEC 5

mSEC

10

20

mSEC

50

mSEC 9

0

.1

SEC

0.2

SEC SEC

0.5 1

SEC

2

SEC

portion

of

XlO

the

+o.8

scale.

switch out).

div

first

50

(Pull

div,

Selector switch to

switch

on

should

SOURCE

CAL

4290

switch to

signal from

Attenuator

pattern

NUMBER

POSITIVE PULSES*

5 cycles

9 cycles

timing timing

17

timing

9

timing timing

17

timing timing

9 timing

17

timing

9

timing

9

timing

17

timing

9

timing

9

timing

17

timing timing

9

timing

17

timing

9

timing

9

timing

17

timing

Number

are

indicated

nanoseconds

SWIEEP

the

Y Plug-in to 0.2V.

be visible

INT

the

Probe

should

be

stationary

(2**)

markers

markers markers

markers

markers markers

markers

of

by

numbers

of

the

AUTO

and

Main

to

OF

(2**)

positive

sweep.

SWP

on

COU-

Frame

the

Y

on

Control

TIME/DIV Trigger Trigger Trigger TRIG

Sweep

2.

LEVEL

Set

SOURCE COUPLING SLOPE

Mode

Selector

MODE

ALT.

3.

Set

frequency

Wave

Generator

Channeh A and

4.

tion

input

5.

Adjust

and

waveform.

Check

each

observe

that independently controls.

4-8.

SAW OUT

I.

Connect

nector

of

the

Y Plug-in by

cable.

2.

Set Sweep

SWP

and

TIME/DIV

3.

Set

VOL TS/

The

pattern

slope

from left to right.

4.

Set

5.

Transfer

nector

6.

The

an

amplitude

7.

Check

VOL TS/

to

the

display

should

GATE

of

the

with a probe.

8.

Disconnect

switch

of

Fairchild

to

30

Kc

B.

display for

the

stable

both

displays may be

with

their

AND

GATE OUT CHECK

the

SAW

OUT

Mode

Selector

switch to 2 µ,SEC.

DIV

switch

be

an

DIV

switch

the

cable

OUT

should

be a positive-going

approximately

Saw

Output

the

cable.

10

µ,SEC INT LF

REJECT

+

Zero

TRIG SWP

on

Dual

Type

and

apply

2y2 divisions

alternate

respective Y

signal

means

oblique

from

connector.

of a short

switch

on

the Y Plug-in

line

to 2V.

the

5 volts.

signal

Setting

Trace

791A

output

display

to

with

SAW

at

P8001

plug-in

Square

to

both

of

deflec-

of

positioned

POSITION

Input

con-

length

to

RECUR

to

lOV.

increasing

OUT

step

con-

with

to

the

of

32

4-3

NOTES

SECTION 5

MAINTENANCE

5-1.

INTRODUCTION

This

section

tion

and

5-2.

REMOVAL

If

it

is

from

the

Serial

parts for the the number strument.

parts ponents. components ever, been part

available within which equipment Field spare replacement

5-3.

tion struction assumed

and

Base

sary

the

easiest way

Number

for

out-of-warranty

Parts values,

Since

your

may

if

you

superseded

will be

It

is

the

will

representative

parts.

Be

sure

ing

washers transistors heat

sinks

optimum

SERVICING HINTS

General

is

given

have

Plug-in

In

trouble

to

determine

Main

of

the

manual

procedures

necessary

factory, always give

in-warranty

List

tolerances,

for

all

This

instrument

have

In

such

will order a part

shipped

aim

the

state

help

to

Also

parts

and

that

with

heat

maintenance

in

Manual.

that

you

definitely

unit.

shooting

Frame

of

for

AND

REPLACEMENT OF

to

order a replacement

of

the

replacement

replacement,

in

this

manual.

ratings,

electrical

will

help

been

superseded

cases,

the

not

be listed in

by

an

improved

in

place

of

the

Fairchild

most

reliable

of

the

user

its specified

maintains a limited

the

factory may be asked

on a rush

NOTE

replace

(they

the

isolating

the

serve

require

Dow

transfer.

Type Jn

the

have

isolated a

a Plug-in

if

the

of

the

and

already

oscilloscope.

internal

instrument.

to left

art to

Corning

defect

contains

adjustments.

the

Type

or

be The and

components

expedite

the

factory, some

by

part

numbers

your

from the factory,

component,

of

the organization

commercial

and

to

rapidly

performance.

beryllium

as

them.

trouble-shooting

766H

following discussion,

the

restore

basis.

heat

Always grease these

silicon grease

Series Oscilloscope

read

trouble

unit, is

in

trouble

service

Before

purchasing

sure Parts

the

used

service.

improved

Parts

part

provide

oxide

sinks)

that

it

the

The

is

informa-

PARTS

component

Number

ordering

to

List

factory

in

of these

List. How-

and

the

ordered.

to

oscilloscopes

any Your number

to

insulat-

on

informa-

information

in

the

becomes neces-

plug-in

quickest

to

substitute

AND

and

them

consult

gives

part

the

in-

of

the

com-

new

it

has

new

make

services

of

our

local

of

air-ship

the

for

In-

it

is

Time

or

in

and

RECALIBRATION

another trouble

stitution,

in

There understanding best eration, the an tional

scription

To ance, intervals. the these unit insure you operation Also, checked of ment of

In unit,

I. eration able helpful not move

2. test oscilloscope are Both given. Use a Probe

Series) . A with 25

3. clean smooth while

conductors.

con

4.

the

suspecting

plug-in

persists.

it

can

the

Main

Frame.

is

no

help.

With

it

will be possible to

general

aid

installation

using a light

recalibrate

any

the

use this

shown

Mc

Type

trouble

source

in

trouble-shooting

block

and

Section

keep

electronic

it

is

desirable

The

regular

the

procedure

Instruction

the

the The

as

the

Localizing

the

a Y

Maintain a high

bench

soldering.

When

checks,

reliability

or

every

calibration

and

adjusted

component

event

following

Type

of

the

an

accessory.

for

routine

extension

Main

at

key

waveform

high-impedance

while

trouble

Fairchild

Plug-in

is

recommended.

and

bright;

The

26S

using is

the

unit

and

lf

the

trouble

be safely

simple

of

the

an

of

timing

and

to

period

and

air

the

six

in

for

Manual.

of

improper

suggestions

4294

plug-in

maintenance

Frame

the

to

check waveforms.

points

having a bandwidth

soldering

Use use

is

recommended.

accessory

not

originating

instrument

assumed

way

of

functions

understanding

troubles

this

diagrams

to

the

units

operating

check

between

the

conditions

clean

all

blast

or

of

measurements,

plug-in

months

of a unit

after

the

unit.

this

unit

performance

Extension

from

This

plug-in

for

HF

side cover.

trouble

amplitude

shooting

do

heat

of

on

Type

quality

not

sinks

a 30-watt

probes

itself.

is

766H

determine

continues

that

locating

of

the

of

make a good

from

the

unit,

refer

in

schematics.

the

equipment

checks

of

dust

and

soft

brush.

after

each

if

used

should

repair The

complete

is

given

are

recommended:

Cable

the

oscilloscope

extender

and

recalibration.

alignments;

made

easier

These

the

over-all schematics.

and

time

10:

l Passive

(Fairchild

Series

of

workmanship.

iron;

keep

overheat

when

iron

or

adapters,

in

the

if

the

same

after

sub-

the

defect

troubles.

circuits

the

circuit

symptoms.

to

the

Circuit

at

top

will

depend

operation.

dirt

However,

we suggest

500

intermittently. always be fully or

replacement

in

this

of

the

for

remote

instead

by use

waveforms

duration

Attenuator

Type

Oscilloscope

from

solder

any

component

soldering

such

as a

accessory

is

guess

the

func-

perform-

at

regular

from

hours

adjust-

Section

Plug-in

is

avail-

will

4290

de

Use a JOtnts

semi-

Hexa-

he

before

An the op-

De-

For

the

that

op-

Do

of

are

sure

is

at

As

on

to

of

be

re-

a

to

5-1

section 5 - maintenance

5.

Once

the

defective stag·e has been localized, co111ponent located by voltage

shown

111anual.

6. ductors graphs

5-4-

Since cover when To· gain knurled

it free

WHEN

MOVED SER THE are

ray capabi

in

these

ment grasp possible, sul

ated lead 1s

m use.

5-5

.

TEST

ADJUSTMENTS

or

co111ponents

tube

and

co111ponent

measurelllent.

on

the

over-all schematics

The

identification

and

service

in this Section

GAINING

the lllOSt the

ACCESS

Plug-in

of

the

plug-in

access to

thumbscrew

of

the

Main

THE

FROM

VICING,

POWER

potentially

tube

potential

lities a

nd large

supplies.

with

one

the

metal

stand

tools.

It

in

the

power

EQUIPMENT REQUIRED FOR

Key voltage

adjustments

of

the

TO CHASSIS

is

not

components

is

removed

the

chassis,

at

center

Frame.

WARNING

PANELS

THE

EXERCISE

IS

ON.

more

dangerous

because

filter

When

hand

while

frame

on

an

insulated

is

advisable

cord

of electron

OR

The

you

with

whenever

causing

the

trouble

substitution

measurements

at

the

tubes, semicon-

are

shown

Instruction l\[

contained

from

bottom

in its

are

readily accessible the

Main

simply

of

unit

unscrew

PLUG-INS ARE

INSTRUMENT

CAUTION

lower-voltage busses

than

the cathod

of

the

high

capacitors

reach

into

the

it

is

turned

the

to

ground the

other

floor

the

on,

and

instrument

SERVICE

rear

on

anual.

WHILE

current

emp

hand.

and

can be

or

of this

photo-

own

Frame.

and

RE-

FOR

loyed

instru-

do

not

use in-

third

recalibration

the

by

are

dust

the

pull

e-

If

b.

TEST (Equivalent

Equipment

Oscilloscope

Y Plug-In

X Plug-In Volt-ohmmeter

Square Wave Generator Time-Mark Generator Vacuum Tube Voltmeter Differential Voltmeter Type

4290 Alignment 50-0hm

Turn

u p

ti

me.

Preset

indicated:

Control

VARIABLE Sweep Mode Selector

SOURCE

COUPLING SLOPE TIME/DIV TRIG

LEVEL

HF

STAB POSITION VOLTS/DIV

(Y

Plug

EQUIPMENT REQUIRED

may

be

substituted)

Type Type 76-

installed Type Simpson

20K Fairchild Type 791 A Fairchild Type 781 A

Hewlett-Packard

John Fluke 10:1 Passive Attenuator Probe

Tools

Termination

011

the

power

front-panel

Sweep

Fairchild Type

Type

and

allow

controls

Fully cw

AUTO SWP

INT

AC

+

10 Zero Any position Centered

-in)

CAL

Description

Fully tested and certified

765

Series

Main

Frame

02A

with

delay

74-03A

Model

260;

ohms/volt

4285A

30 111inutes

on

the

Setting

ms

Model

7013

Type

sensitivity

Model

41

801

Tool Kit

of

warm-

74-03A as

line

OB

a.

Introduction

Th

~

adjustments

graphs

the line

an the the

are

based

on

factory. All

adjustments

voltage, l 15V/ 230V ± 2j{.

To

set

up

the

Time

amplifier

Main

plug-in

Frame.

Frame

The

must

units.

Always use

ing

adjustments The aged if one

or

off

power

insulated

on

transistors in this in

overvoltaged

111ore elements.

when

making

5-2

out

lin

ed

in

the

test

procedure

~hould

Base

unit

for

and

the

Time

amplifier plug-in

be fully tested

CAUTION

tools

while

the

unit

when

strument

by

accidental grounding

Exercise

repairs.

the foll

be

owing

made

calibration,

Base plug-in

module

and

working

power

111ay

caution

para-

followed

at

insert

certified

or

mak-

is

on.

be

dam-

and

turn

at

mid-

into

and

of

Turn

on

up

time.

Preset

indicated:

VARIABLE Sweep

SOURCE COUPLING SLOPE TIME/DIV TRIG HF POSITION VOLTS/DIV

STAB

(Y

Mode

LEVEL

Plug-in)

the

power

front-panel

Control

Sweep

Selector

and

contro

allow

30

ls

on

the

Fully cw AUTO SWP INT AC

+

10

ms Zero Any

position Centered CAL

minutes

Type

Setting

of

warm-

74-03A as

5-6.

TRIG

LEVEL

I.

Set

the

TRIGGER TRIGGER seen

on

screen.

2.

Adjust RS 122 so turning

forth

5-7.

I.

2.

17

of

that

the X amplifier

throughout

X AMPLIFIER

Set Sweep Connect a Simpson

P8001

CENT

Sweep

SOURCE

SLOPE

the

TRIG

the

Mode

and

set Voltage

Mode

to

vertical

its range.

LEVEL

scale.

3.

Adjust

reads zero

4.

Connect

pin 1 (or

the

or

less

POSITION

than ~ volt.

the

John

17)

to

switch to 500-volt scale.

5.

Adjust X AMP

LEVEL

89 volts, ± 1 volt.

Not

e:

Make

sure

that

introduce

6.

any

parasitic

Disconnect

the

Voltmeter.

maintenance

ADJUSTMENT IRBl 22)

Selector switch to X

switch to

+.

A vertical

LEVEL

CENT

line

VERNIER

ADJUSTMENT IR8339)

Selector switch to

Voltmeter

Range

control

Fluke

Voltmeter

ground

and

potentiometer

the

measurement

oscillation

EXT

line

potentiometer

will

not

control

TRIG

across

switch to 2.5-volt

until

set Voltage

in

the X Amplifier.

AMP,

and

should

shift

while

back

and

SWP.

pins I and

the

voltage

from

P800l, Range

R8339 to

does

the

be

not

and

5-10.

TIME VARIABLE

SOURCE COUPLING SLOPE Sweep VOLTS/ DIV

recalibration - section S

SLOW

I.

Preset

/ DIV

(Y Plug-in)

2.

Adjust

front-panel

Control

Mode

SWEEP

Selector

SWP

CAL

controls

CAL

trol for precisely 6 cycles

(60-cycle

Note:

for precisely 5 cycles

line)

in

For

50-cycle line,

10

divisions.

of

divisions.

For

400-cycle line, use sweep and the

Make

adjust

calibrator

SWP

sure

CAL display the

UNCAL

control

in

adjustment.

ADJUST

as

indicated:

Setting

10

msec

Fully

cw

(click

is

heard; UNCAL lamp

is

off)

INT AC

+

AUTO SWP CAL

front-panel

of

adjust

the

calibrator

for precisely 2 cycles

10

divisions. lamp

screwdriver con-

the

calibrator

SWP

display

rate

of

is

off

display

CAL

control

0.5 msec/

during

in

10

div

of

the

5-8.

DC

BALANCE

1.

Set Sweep

position

2.

Do

3.

bring

5-9.

The so zontal

Set

not

Adjust

the

SWEEP

that

the

touch

vertical

SWEEP

the

scan

deflection.

1.

Set

Trigger switch TRIG

2.

Adjust

to

SWP

+,

trace.

3.

Adjust

until

the

trace

deflection.

When

R81l3 depositioning Selector positions

switch

.

ADJUSTMENTS

Mode

Selector switch

trace

to

the

center

Sweep

Mode

position

the

DC

line

LENGTH

Selector switch to X

control.

BAL

to

the

ADJUSTMENT IR8229)

LENGTH

trace

may

be

adjusted

of

10 to 11.5 divisions

SOURCE

and

Sweep

.

TRIG

SWP

occupies

is

of

is

the

LEVEL

LENGTH.

11

properly

display

set from X

IR8113l

to

of

the

screen.

potentiometer

center

of

potentiometer

to

display a

switch to

Mode

control

LINE, SLOPE

Selector

to

obtain a steady

potentiometer

divisions

adjusted,

when

there

the

AMP

RECUR

AMP.

R8113

the screen.

is

provided

hori-

of

horizontal

switch

R8229

of

horizontal

will

be

Sweep

to

the

Mode sweep

and

to

no

5-11.

Xl

0 REGISTRATION IR8311 l

1.

Position

one

of

vertical

2.

Pull

trol) carefully.

3.

Adjust

R83 I l

again

on

±Y2

division).

is

out

y

w,

5% resistor.

2

4.

Push

5-12. X AMPLIFIER

IC8116, C8309, C8317, & C8301l

I.

Replace

with a tested

then

set

nally

from a Fairchild

erator

NOTE:

for

the

Unit

inserted

2.

Set Sweep

SOURCE

3.

Apply Fairchild terminated

the

calibrator

center

out

until

the

of

range,

in

up

to

(see

Figure

Unless

balance

switch to

a 100 Kc

Type

cable to

the

pattern

so

pulses

line

of

the

XlO

MAG

Avoid

the the vertical

If

the

Time

XlO

leading

center

the

XlO

shunt

XIO

MAG

HF

Plug-in

Base

changing

Registration

edge

Registration

resistor R8309

ADJUSTMENTS

Amplifier Plug-in

obtain a vertical

Type

5-la).

otherwise

of

this

setup

in

the

X cavity.

Mode

Selector switch to X

EXT.

square

791A

Generator

the

EXT

that

the

leading

is

coincident

scale.

knob

(POSITION

th~

position

of

the same pulse is

line

of

the scale

knob.

in

unit.

sweep

triggered

791A

Square

noted,

the

pertain

to

wave signal

through a properly

INPUT

edge

with

the

con-

setting.

potentiometer

(within

potentiometer

with a l50K,

the

Y cavity

This

unit

exter-

Wave

Gen-

test

procedure

the

Time

Base

AMP

and

from

the

connector.

of

is

5-3

section 5 -

TYPE

765H

maintenance

and

recalibration

4.

Adjust

Type

74-03A

Ext

Input

100

Output

Kc

TYPE

Square

Generator

amplitude

791

Wave

@:>500

Type

74-03A

Ext

Input

Trig

Out

2 divisions peak-to-peak other

words, 1 division to

right

of

the

scale

center

5.

Adjust

6.

Set adjust the

screen.

7.

Center

same way as was

8.

Adjust

top

and

9.

square

Note:

for

the

graph

point

cali

bra

trimmer

the

Square

oscilloscope

the

pattern

done

trimmers

rise

time

is

Pull

out

the

wave

amplitude

Trimmer

fast sweep

5-13.

calibration

Therefore

may have to be

ti on.

C81

Wave

controls

in

C8309 achieved. XIO

C8317 will

the

of

the

square

about

the

left

the

and

line. 16

for a flat-top

Generator

for a 2-cycle

and

adjust

step

4.

and

C8317

MAG

to give

control

procedure

square

wave response

compromised

TYPE

4265A

500

RG-6A/U

Trimmers

ce116 C8309 C83l

7

wave

pattern

scale center.

1 division

display

to I

to

.

Mc

pattern

its

amplitude

until

best flat-

and

reduce

display.

to be

readjusted

given

in

para-

at

to assure sweep

location

Fig.

f;g. 5-4

for

In

the

and

on

the

this

5-2a

I

0.

Temporarily

the

Time

11.

Set the Sweep

SWP.

12.

Apply a JOO Fairchild terminated

(See Figure

13.

Adjust

14.

Remove

porarily

with

5-13.

I.

a

Fairchild

15.

Apply

installed

Replace

the

FAST

IC831 7,

terminated

Figure

5-la

Test Setup for X

ground

Base

unit

in

Mode

Kc

Type

791A

cable to

5-1

the

b.)

trimmer

the

ground

in

the

Time

Y Plug-in

SWEEP

Module

CALIBRATION ADJUSTMENT

C8324

, C8401 & C82181

a I-microsecond

Type

781A

cable to

Input

.

Amp/

HF

the

collector

the

X cavity. Selector

square

Generator

junction

switch

wave signal

through a properly

of

R8301

C8301 for a flat-top

connection

the

collector

Base

originally

unit

of

Q8207.

in

installed.

time-marker

Generator

connector

through a properly

on

Adjustment

of

Q8207

to

TRIG

from

and

R8247.

display

that

was tem-

the

Y cavity

signal

the

Y plug-in.

of

the

.

from

5-4

Trig

Level

Pot

Vernier

Pot

maintenance

TYPE

791

Square

Wove

Generator

1 00

Kc

Output

RG-SA/U

and

Right Side Section

View

recalibration - section 5

of

Type

Plug-In

74-03A

2.

Adjust

the

play a vertical

3.

Set

TIME/DIV

4. C8401 ing

markers

5.

the

XlO

6.

Using

Set

Switch

an

located

occupy

TIME/DIV

MAG

the cycles. A 4-cycle within

the

centered

VOL TS/

amplitude

switch to 0.5 µSEC.

insulated

on

the

TIME/DIV

precisely

switch

control.

frequency

sine

wave display

8-division

DIV

switch

of

about

screwdriver,

switch

10

divisions.

to 0.1 µSEC

of

generator

should

portion

to

give

4 divisions.

adjust

trimmer

until

and

pull

to 50 mega-

be

observed

of

the

graticule.

the

6 tim-

dis-

out

If

not,

bring

the

7.

Set

sine

wave

tered

8-divisions readjust between

8.

Position

sweep

after

then

adjust

promise

trim

up

calibration

the

TIME/DIV

display

C83 I 7

these

the

C8212 to

may

be necessary

Figure

Test Setup

with

within

should

to

within

and

C8324 to

two

sweep ranges.

the

sweep so

first 50

get

5-1

b.

for

Adjusting

capacitor

C83 I 7

and

C8324

5%.

switch to 0.05. A two-cycle

be

observed

5% accuracy.

within

If

necessary

obtain a compromise

that

the

portion

nanoseconds

the

between

best

calibration.

the

is

shown

on

last two ranges.

C8301

the

cen-

of

screen,

A com-

to

the

s-s

section 5 -

maintenance

and

recalibration

5-6

figure

5-2a.

Right

Side

View

Showing

Pots

and

Trimmer

Adjustments

maintenance

I

and

recalibration - section 5

X

Input & Trigger

Circuits

Miller

Saw

Integrator

&

Output

Horizonta'

Deflection -

Amplifier

Figure

5-2b

. Right Side

View

Showing

Tubes

and

Transistors

5-7

section 5 -

maintenance

\

and

recalibration

!"

v'a11

)

~~

~

1

0

q

•

101

0

,o

~;

~u

>w

va12

("'

-

c

:..1

5-8

Figure

5-3. Left

Side

View

Showing

Tubes

and

Transistors

Unblonking

-

Amplifier

maintenance

JI.-

and

recalibration-section

5

'

C8317 C83

X Ampl

Freq

Adj

lockout

Emitter

Follower

X

Output

- Ampl i

fier

Circuit

24

Hi

Figure

5-4.

Top

View

Showing

Transistors

and

Trimmer

Adjustments

5-9

section

6a-

parts

lists

and

schematics

KNOB,

Time/Div

4500

SWITCH

Reset

0503

CONNECTO

Ext Reset

0905

8550

9035

,

2190

RESET

R, I

~

EXT

KNOB,

Position

4501

2022

-·

TIME

BASE

TYPE

74-03A

PANEL

,

Front

3201

I

·-

SWP

CA.l

~

...---------

.....

EXT

~...!.---

3243

SAW

OUT

GATE

OUT

INPUT

HF

--T---

STAB

BUSHING,

Swp

Cal

4301 3581

131

KNOB ,

~~~~ble2031

KNOB,

HF

Stab

4501 2 1

81

6-0

KNO

Tr

ig Level

4501

B,

209

1

'

LOCK

FAIRCHILD

CLIFTON,

N.J

• • U.

".:

S.A.

LINE

KNOB, 13)

Lever

4501

2202

/

KNO

figure

B,

Fastener

450

1

043

l

6-1 . Front Panel

Replaceable

KNOB,

Gnd Post

4501 2191

Parts

SECTION

6A

Symbol

Notes:

C8101 C8102 C8103 C81Q.4 C8105 C8107 C8108 & C8109

C8111

C8112 C8113 C8114 C8115

C8116

C8117 C8118

C8119 C8201 031S C8202 C8203 C82CM C820S

C8206 C8207 C8208 C8209

C8211

C8212 & C8213 C8214

C8216 C8217 C8218 C8261 C8262 C8263 C8264 C8267 C8269 C8271 C8272 C8301 C8302 C8303 C83Q.4

C830S

C8306

C8308 C8309 C8310

C8311

C8312

C8313

C8314

C8315 C8316

C8317

C8318 & C8319

Part

1.

2. 0326

0326 031S 0319

to

0319 0314

0319

0317

0319 0326 0316 0310 0326 0319 0326

0316 0230

0305

0313 0317 0316 0230 0319 0316 0319 0315 0315

0317 0326 0319 0326 0326 0326 0319 0317 0317 0326 0326 0326 0317 0326 0319 0316 0317 031S

tc

0319 0326 0315 0326 0319 0326 0326 0319 0316 0326

0319

All

specified;

GMV

Number

CAPACITORS

capacitors

4S20

4SSO

2000 1060 0.01

lOSO

6860

lOSO

5210

lOSO

7930

9480

lOSO

4S20 1000 pf,

2000

S8SO

3960

SlOO mica, 20

lOSO 0260 1060 0.01 3630 1920

5100 7880 lOSO

7880

9510

7860

lOSO

5210

67SO

8060

4620

7860

67SO 9480

1060

0290 S110 22 pf,

3630

lOSO

9SOO 4090

7860

lOSO 7880 8080 lOSO

0240 9480

10SO

ore

pf

denotes

Guaranteed

1000

pf,

2000

pf,

100

pf,

µf,

O.Q2

µI,

S.6

pf, .± 1

O.Q2

µf,

mica,

Sl

O.Q2

µf,

plastic, 1 33

pf,

variable,

0.02

µf,

lS

pf,

100 pf, mica, composition, 10 pf, ±

lS

pf, ±S"fo

O.Q2

µf,

20

pf,

µf,

lSO pf, ± 10o/.

220

pf,

mica, plastic, 0.22

0.02

µf,

plastic, 0.22 variable, plastic, 0.1

0.02

µf,

mica,

Sl

mica, 1000 pf,

plastic, 0.1

sooo pf

plastic, 0.1

mica, 1000 pf,

variable,

0.01

µI,

27

pf,

lSO pf,

0.02

µf,

variable,

10

pf,

plastic, 0.1

0.02

µI,

plastic, 0.22 plastic, 0.22

0.02

µI,

16

pf,

variable,

O.Q2

µI,

ELECTRICAL

AND

TYPE

Desnlptlon

fixed, ceramic,

picofarads.

GMV GMV

±20%

+60

-40o/.,

+60

-40%,

"lo

+60

-40%,

pf, ±S"fo

+60

-40%,

µf, ± 10%,

±S%

9-3S pf,

+60

-40o/.,

GMV

±S%

±20%

510

pf, ± 10%,

pf,

±5%

+60

-40%,

±S"fo

+60

-40%,

±20%

20

pf,

±S%

µI,

±

+60

-40%,

µf,

±5%,

2.5-11 pf, 200V

µf,

±

+60

-40o/.,

pl,

±5%

±So/.

µf,

± 10o/., 400V

µI,

± 10Yo, 200V

±sy.

9-3S pf, 100V

+60

-40%,

±S"fo

±sy.

±10%

+60

-40%,

S.S-18

pf, 200V

±o.s

pf

µI,

±

+60

-40%,

µf,

±

µf,

± 10o/., 400V

+60

-40o/.,

±S"fo

9-3S pf,

+60

-40%,

Recommended

and

SOOY

Minimum Value.

lSOV lSOV

12SV

lOOV

lSOV

300V

10%

lSOV

10%,

200V

lSOV

200V

10%,

200V

lSOV

10%,

200V

lSOV

10%,

200V

lSOV

lOOV

lSOV

Code

unless

ERC ERC EIA CRL

CRL

EIA

CRL

EMC

CRL

AMX

EIA ERC CRL ERC

EIA EIA

EIA

STC

EMC

EIA

CRL

EIA

CRL

EIA

ERC

EMC

AMX

EIA

AMX

ERC

AMX

CRL

EMC EMC

AMX

ERC

AMX

EMC

ERC

CRL

EIA

EMC

EIA

CRL ERC

EIA

AMX

CRL

AMX

CRL

EIA ERC

CRL

Type

otherwise

DOM DOM

DOM

DMlS DOM C296AA

DOM

GA

DMlS

DOM

GP2331

DMlS C296A8

C296A8 C296A8

DOM

DM1S

DM20 C296AA

C296A8

DM20

Style S38

DOM

DMlS

DOM

Style

C296A8

DOM

C296A8

C296AA

DOM

Style

DOM

PARTS

LIST

SCHEMATICS

74-03A

Vendor

538

S38

VIME

C8321

C8402

C8406

C8407 C8408 C8409 C8411 C8412 C8413 CS-414

C8418

CR8201 to CR8206 CR8207 CR8208 & CR8209 CR8210 CR8211 CR8261 & CRS262 CR8263

DS8201 DS8302 & DS8303

DS8401

HY8301, HY8307 & HY8311

J8101

J8201

BASE

Symbol Part

C8322 C8323 C8324 C8401

C8403

C840-4

C8416 to

0317 0317 031S 0326 0326 0316 0326 0327

0327 0327 0326 0319 0302 0316 0316 0316

0326

2600

2600 2600

2600

1200

1201

1200

2110

090S

Number

S110 mica, 22 pf,

S280 mica, 100 pf,

3630

lSO

9480

9490

0300

8270

2090

1S10 mica, 3831 1S80 mica, 348

7930

62SO

9840

38SO 3790 4180

4S20

pf, ± variable, variable, 30

pf,

plastic. 0.86 µf, ± 1 % . 1

plastic, 0.03866 µf, ±O.So/.,

lOOV

plastic, 1 plastic, mica,

4700

47 pf,

27

pl,

9.1

pl,

1000

pl,

SEMICONDUCTORS

6910

diode

8020

diode,

6910

diode,

6820

diode,

6990

diode,

6910

diode,

6820

diode,

3960

glow, neon, NE-2 (SWP

23SO

light, indicator, neon

(POSITION)

3960

lamp, glow,

(UNCAL)

HYBRID

1S60

bead,

ELECTRICAL

7610

receptacle, rf, female, 1 con-

tact, 8NC, UG-62S-A/U

7610

(EXT

receptacle,

tact, 8NC, UG-62S-A/U (GATE

Description

±So/.

10%

9-3S pf,

2-8 pf, 200V

±So/.

pl,

µI,

±

O.OS

µI,

pf, ±

±So/., ±So/.,

±S"fo,

GMV

FD841 FDG3091

FD841 FD281 1 N7S2

FD841 FD281

LAMPS

neon,

ferrite

INPUT)

rl,

female, 1 con-

OUT)

Recommended

lOOV

OOV

±O.S%

±-0.S"fo

10%,

12SV

± 10o/.,

lSOV

lOYo lOOOV lOOOV

lOOOV

READY)

NE-2

COILS

CONNECTORS

Code

EMC EMC

EIA ERC ERC

EIA

GUO

EMC EMC

AMX

GUO

EIA

RMC RMC RMC

ERC

FCI FCI

FCI

HOF

FCI

GE

SIG

GE

FER

EIA

Vendor

Type

DMlS DMlS

Style

3SS8

Style

3SS8

DMlS DMlS C296AA 338Y

c c c

FD841

NE-2

T2

27

1R100

NE-2

S6

S90

6S/38

S38

6-1

section

6a

- parts lists

and

schematics

Symbol

J8202

J8203

P8001

L8201 &

L8261 2102 0830

Q8101 Q8103 Q8105 Q8106 Q8201 & 2600 Q8202 Q8203

Q8204 Q8205 Q8206

Q8207

Q8208 & 2600 Q8209 Q8301

Q8303 Q8304

Q8305

08306

Q8307

08308

Q8309 Q8310 Q8311 Q8401

Notes

Part

Number

0905 8550 receptacle, ac, female, 2 con-

0905

7610

0905

7340

to

2600 7060 2600 7050

& 2600 8200

2600 8170

7030

2600

7000

2600

7260

2600 7250 2600

7070

2600 7050 2600

7280

2600 7050 2600

7370

2600

7020

2600

7000 7270

2600 7250

to

2600

7080

2600 7050 2600

7260

2600 7250

& 2600 7080

2600 7050 2600 3061 2600 8640

&

2600

7020

2600

7000

&

2600 8640 2600

7170

2600

7150

:

1.

All resistors

unless otherwise

2. Listed used on the

and

74-13A Time

selected All

minus tolerance units

plus tolerance units

When

marked

will

be sent.

unit

, be sure to replace

component. This

module.

6-2

Recommended

Description

tacts, 15

amperes-125-volt operation; 250-volt (EXT

receptacle,

tact, BNC, (SAW OUT) EIA

plug

, male, 32 contacts APH 26 159 32

operation

RESET)

rf,

10 amperes -

female,

UG-625-A/U

1 con-

Code Type

COILS

rf,

female, 120

µh, ± 10%

TRANSISTORS

DU

#2 alternate DU alternate DU

alternate

DU alternate

DU alternate DU # 8A/2N699B DU alternate DU

alternate

DU alternate DU alternate DU alternate

(selected 36A) DU DU alternate

DU DU alternate

#14B

#lB

#6

#2A

#6B

#lA

#6A

#2B

#6

#2B

#36A

#IA

#36

#4A

2N915 2N2369 2N914 2N 1893 2N915 2N 1893

2N914 2N

1893

2N915

2N 1893 2N915

2N914

2Nl

132

RESISTORS

are

fixed,

film, ±

5°/'o,

Y

W,

and

specified

; K = thousand, M =

below

are

the Part Numbers

TIME/DIV

for

plus

Resistor Part

0239 0239 0239 0239 0281 ta

a replacement is

with a yellow

If

switches

Base

Plu;i-

or

minus tolerances.

are

marked

Number

0241 to

0239 0249

0251

to

0239

0261

to

0239

ordered, a pair

dot

insure

it

proper

and with

a color-coded component is removed from

will

2

for

of

in

Modules. These resistors

marked

with

0259 0279 0299

fixed,

the Types

with

a green dot.

the

other

the cerresponding color

performance

Vendor

KUL No. 222

JEF

FCI FCI FCI FCI FCI

FCI FCI

FCI FCI FCI FCI FCI

FCI FCI

values

in

million

film

resistors

74-03A,

74-

a ye/low

af

with

dot

resistors,

a green

of

tloe

plug-in

ohms

llA

are

and

one

dot the

dot

Symbol Part R8100 0235 4850

R8101 R8102 0235 4860 R8103 F/R

(part

of

5814) R8104 R8105 R8106 R8107 R8108 R8109 R8111 R8112 R8113

R8114 R8115 R8116 R8117 R8118 R8119 R8121 R8122

R8123 R8124 R8126 R8129 R8131

R8132 R8133 R8134

R8136 R8137 R8138

R8139

R8141

R8142 R8143

R8148

R8149 R8151 R8152 R8153

R8154

R8201 R8202 R8203 R8204 R8205 R8206

R8207 R8208 R8211 R8212 R8213 R8214 R8216 R8217 R8218 R8219 R8221 R8222 R8223 R8226 R8227 R8228 R8229

R8231 R8232

R8233

R8234 R8236

Number

0235 4720

0107 2821

0235 5090 0236 3100 0234 8510 0235 5330 0235 5170 0234 8510 0234 8460 0236 6640 0109 0850

0234 7970 0236

6640 0235 4410 0234 7970 0235 4410 0203 0160 0234 8380 0109 0840

0234 8380 0203 0160 0234 7970 0236 6630 0236 6630

&

0234 8250 1.5K 0234 8160 620

0203 0160 composition,

0234 8340 3.6K

0236

6760

0234 8580 36K

0236 5060 226 , ± 1 % 0234 8650 68K

0203 1090 composition, 360K 0236 5220 332 , ± 1 % 0236 6600 9.09K, ± 1 % 0236 7250 43.2K, ± 1 % 0233 9810 6.04K, ± 1 0203

0000

0234 8100 360

&

0236 5680 0203 0160 0234 9230 0234 8300 0109 2180

0236 5040 0234 8540 0236 5860 0204 2300 0234 8570 0234 8560 0234 8440 0203 1060 0234 8370 0234 7970 0236 5680 0234 8690 0234 8470 0236 5840 0234

7970 0234 8270 0109 0800

0234 9220 5.1 0234 8040 200

0237 1210 39K,

0234 8010 150 0234 8320 3K

Description

composition, lOK, % W composition, 3K, composition, 11K, variable;

(TRIG LEVEL/X AMP VERN)

lOOK, 'AW 220K

18K composition, lM, % W composition, 220K,

18K

11K

lOK variable

•. composition,

±

20%, 100 lOK, ±

1%

composition, 130, % W

100

composition, 130, composition,

5.

lK

variable

, composition, 20K,

±

20%,

LEVEL

5.

lK

composition ,

100

9.76K, ±

13

.3K, ± 1 %

composition, 10

lK, ±1%

composition,

5.6K,

lW

2.4K

variable, composition,

±

20%, 0.3W

215, ±

1%

24K

1.54K, ±

composition,

33K 30K

9.

lK

composition, 270K

4.7K 100

lK, ±1% lOOK

12K

1.47K, ± 100

1.8K variable,

±20%, 0.3W

LENGTH)

K,

1 W

2W

1

~

W

'AW

500K/3K, ± 10%

'AW

0.2W

(DC

BAL)

'AW

47

0.2W

(TRIG

CENT)

47

1%

1°/

~

47

%.

2W

47

(HF

1%

91M, ±20%

1%

composition, 1.5K,

(SWP

SOK,

500,

STAB)

Recommended

Code Type

ALB

CB

ALB

CB

ALB

CB

ABO

CB

ALB

C20

CGW

C20

CGW

CB

ALB

CB

ALB

C20

CGW

C20

CGW

NS20

CGW

Series

CTS

CGW

C20 NS20

CGW

ALB

CB C20

CGW

ALB

CB

ALB

EB

CGW

C20

Series

CTS

C20

CGW

ALB

EB C20

CGW CGW

N20

CGW

N20

CGW

C20

CGW

ALB

EB

CGW

C20

NS20

CGW CGW

C20

N20

CGW

C20

CGW

ALB

EB

N20

CGW

N20

CGW CGW

N20

CGW

S25

ALB

EB

CGW

C20 N20

CGW

EB

ALB

C32

CGW

C20

CGW

Seri

CTS

N20

CGW

C20

CGW

N20

CGW

EB

ALB

C20

CGW

C20

CGW CGW

C20

ALB

EB

CGW

C20

CGW

C20

CGW

N20

CGW

C20

CGW

C20

CGW

N20

CGW

C20

CGW

C20

CTS

Series

CGW

C32

CGW

C20

CGW

C42S

CGW

C20

CGW

C20

Vendor

70

es

70

parts

lists

and

schematics - section

6a

Symbol Part Number Description

0234

RS237 RS23S RS239 RS241

RS242 RS243 RS244 R8246 RS247 RS24S RS261 RS262 RS263 RS264 RS265 RS266 RS267

RS26S RS269 RS271 RS272 RS273 RS274 RS275 RS276 RS277 RS27S RS2Sl RS2S2 RS2S3 RS2S4 RS2S6 RS301 RS302 RS303 RS304 RS305 RS306

RS307 RS30S

RS311

RS312 RS313 RS314

RS315 RS316 RS317 RS31S RS319 RS320 RS321

RS322 RS323 RS324 RS326 RS327 ilS32S

RS329

RS331

RS332 RS333 RS334

RS335 RS336 RS337 RS33S RS339

RS341 RS342 RS344 RS346

&

S330

3. 0236 0350 0234

0236 0236 0350 0234 9240 0203 0160 composition, 0234 7970 0234 0234 0234 9400 0234 0236 6290 4. 0234 0234 0234 0236 6550 0203 0660 0236 6520 0236 6190 0234 0234 9200 0236 5390 0234 0234

0237

0234 0237 1020 0234

0234

91SO 0203 0100 composition, 0236 7190 37. 022S 5110 13.

0203 1030 composition, 0234 0234

0107

3421

0234 7970 0234 S470 0109 0710 variable, composition, 750,

0236 5260 365, 0203 0240 composition, 100

0107

2S91

0203 1130 composition, 0236 4600 75, 0236 6660

0203 0160 composition, 47, ±

0234 7970 0236 6640 022S 5040

0236 6590 0236 6720 022S 5040 0236 6140 0236 6100 0236 5630

0234 7970 100 0234 0234 0203 0160 0234 S320 0235 1760 0235 4260 composition, 33, 0109 0700

0235 4260 composition, 33, 0235 1760 7. 0203 0070 composition, 0235 1760 7.

3K

12K, S040 57SO

S250 S660

S620 S610

S390 S730

S040

S450 S130 lOSO S130

S690 SOJO

S690 S420 7.5K

S250 S320

± 1%

200

1.27K,

± 1%

12K, ±!%

6.

2K,

lW

100

1.5K 75K 30K,

lW

51K

32K,

± 1%

47K

5.

6K

150K

S.

06K,

± 1%

composition,

7.

5K,

± 1%

3.4K

, ± 1%

200

4.

3K,

lW

499, ± 1%

!OK

470

llK,

2W

470

6.

2K,

2W lOOK 150

3.6K,

lW

4K,

± 1%

3K,

± 1 %

lOOK

voriable,

100

12K

variable,

10.5K, 100

lOK

1.21K, S.S7K, ±1%

12.lK, ±

l.21K, ± 1%

3.0lK,

2. SS7

l.5K 3K composition, 47 3K

7.SK,

variable, composition, 100,

30K,

(POSITION

± 10%

±!%

composition,

± 20%

±1%

±!%

, ± 1%

± 1%

!%

±!%

74K,

± 1%

, ± 1%

5W

± 20% 0.

LEVEL)

SK,

5W

SK,

5W

(XlO

(POSITION

47

5.6K

27

200K

± 10%, %W

COARSE)

REG)

510K

3W

20

'/4W

(X

114

JO%

AMP

W

Recommended Vendor

Code

CGW CGW CGW CGW CGW CGW

ALB CGW CGW CGW CGW CGW CGW CGW CGW CGW CGW

ALB

CGW

CGW CGW

CGW CGW CGW

CGW

CGW CGW

ALB

CGW

IRC

ALB CGW CGW

FIC

CGW

CTS CGW

SOK,

VERNIER)

ALB

ABO

ALB CGW CGW

IRC

CGW CGW

IRC CGW CGW CGW

CGW

ALB CGW CGW

ALB

CTS

ALB

CGW

ALB CGW

Type

C20

N20

C20 N20 N20 C32 EB C20 C20 C20 C32 C20 NS20

C20 C20 C20 NS20 EB

N20 N20

C20 C32

N20

C20 C20 C42S C20

C42S

C20 C20 C32 EB NS20 DCC EB C20 C20

C20 C20

65

NS20 EB

ES N20 NS20

EB

C20 NS20

DCC

N20 N20

DCC

N20

N20 N20

C20 C20 C20 EB C20

LPl

-5

CB

65

CB

LPl-5 EB

LPl-5

Symbol

RS347

RS34S RS349 RS351 RS352 RS353 RS354 RS355 RS356

RS357

RS35S RS401

RS402

RS403

(part of

SS42) RS404 RS405 RS406 RS407 RS40S RS409 RS411 RS412 RS413 RS414 RS416 RS417 RS41S RS419 RS421 RS422 RS423 RS424 RS426 RS427 RS42S RS429 RS430

SSll SS12

SS13 SS14

SS21 SS30

(part of

RS314) SS41

(part of

RS403)

SS42

TS!Ol

YSll &

VS12 VS21

Part Number

&

0235 1750 2.lK,

0235 1760 0236 0234 7900

&

0235

&

0203 0230 0410 0234 7900 0109

0236 3190 0107

0234 0203 1000 composition, 0239 0239 0239 0242 5.4M, ± 1% 0239 02S9 0239 02S7 0239 0292 0239 0239 0239 02S5 0239 02S4

0239 02S3 0239 02S2 0239 02Sl

0239 02S6 0239 02Sl 0236 9490 430,

0236 9490 430,

0237 0530 56, 0234 0234 S210

0203 1770

0501 0501

0503 2190

0107

0501

2001

7.SK,

56SO

lK, ±!% 51

5150

composition,

1S90

composition,

lOK,

51

04SO

variable,

± 20%, 0.3W

wire wound,

2711

variable,

± 20%, 0.

S690

lOOK

lSM, ±

0251

9M, ±!%

0241

I.SM, 900K, 4M,

0291

2M,

02SS

l.2M, ± 400K,

200K,

120K, 40K,

20K,

500K,

20K,

S260

1.6K

lK

composition,

7251

lever, 3 positions

7251 7241 7272

2S91

2711

7231

3S21

SOURCE

lever, 3 positions

COUPLING)

lever, 2 positions

SLOPE)

rotary, 3 sections, 5 positions

(MODE)

sensitive,

push-pull,

125V

rotary, 3 amperes,

125V

rotary, 4 sections,

lions

pulse

ELECTRON

2501

3390

6CW4

2501

3400

7S95

Description

5W 5W

lSOK, '/4W !OK,

5%

1.2K, 3W

150K

lK

± 10%

(SWP

± 10%, lW

(SWP

4W

composition, 2.5K,

composition, 2.

!%

±

0.5%

± 0.

± 0.5%

±

0.5%

0.5% ± 0. ± 0. ± 0.

±

0.5%

± 0.5%

±

0.5%

± 0.5% 2W 2W

2W

SWITCHES

(TRIG

SPST

N.O.

DPDT

(CAL)

(TIME/DIV)

(RESET)

, 'h ampere,

SPOT,

24

TRANSFORMER

TUBES

Recommended Vendor

Code

CGW

CGW CGW CGW

ALB

ALB CGW CGW

CAL)

VAR)

pasi-

5K,

CTS

DAL

ABO

CGW

ALB

ABO ABO ABO ABO ABO ABO ABO ABO ABO ABO ABO ABO ABO ABO

ABO CGW CGW CGW CGW CGW

ALB

ABO

GRY

STC

CLS

ABO

RCA

Type

LPl-5 LPl-5 NS20

C20 CB EB

LPl-4 C20

Series 70 CSIA

C20 EB

C42S C42S C42S C20 C20

EB

Series 30

LPP

-50

43

Nuvistar 7S95

6-3

NOTES

SECTION

68

SPARE

reliable

thoroughly

the

instrument.

mental

certain

factory service.

precision

you lists symbol numbers. Section 6A of this

Manual

and

readily your

Field ganization components expedite Serial

part

(see Section 6A

follows.

PARTS

a.

General

The

Type

and

Quality

and

your

Two

lists

in

periodic

include

gives a

their

procure

own

NOTE:

Engineering

Number

number

b.

500-Hour

The

recommended

REQUIREMENTS

74-03A

dependable

tested

Assurance

Continued

Time

Base Plug-in

instrument.

and

approved

Laboratory

performance tests, environ-

life testing of

is

Only

by the engineers of

are used

production

oscilloscope will give many years of satis-

These

engineered

of

"running

maintenance.

recommended

new

Fairchild

and

require

no selected parts.

spares" are included to

The

running-spare

quantities

complete

them

listing of all components

vendors

so

from a local supply house

oscilloscopes are

that

stores.

The

local

Fairchild

representative

can

assist you

in

the

shortest possible time.

service, always give the

of

the

instrument

and

give a description of the

of

this

manual)

Spares

16

list for

ELECTRON

Symbol

V811

V821

in

obtaining

months)

one

TUBES

Scientific

and

any

Type

; always specify

.

through

Quantity

TRANSISTORS

08101 ..............

08105 .................................. 1

08201 08203

08204 .............

08205 08206 08208 08301

08307 ... 08401

.................... 1

.............................. .... 1

.. ................... ............ 1

..................... 1

.................................. 1

.....

....

........

.................................. 2

.................................. 1

................. 2

.............. ................. 1

PARTS

an extremely

components

in

this

units

make

aid

parts

and

reference

Instruction

you may

or

Instrument

his service or-

additional

To

help

Number

component

three

and

the

units

LIST

LAMPS

Symbol

058201 058302

COILS

HY8301 ............

L8201 ....

c.

2000-Hour

The

recommended

given below.

Maintain each oscilloscope in use; 2 spare list given listed

as

follows:

Symbol

(8101 C8102 C8103 C8104 C8105 C8108 (8112 C8114 (8115 C8116 C8118 C8119 C8202 C8203 (8204 C8207 C8209 C2811 (8214 C8218 C8261

Symbol

058201 .................................. 1

058302 .................................. 1

............................... .

Spares

12

list for

spares

in

paragraph

CAPACITORS

Quantity

2 C8264 1

1

7

1 C8309 1 1 1 C8316 1

LAMPS

..................... .

years)

one

indicated

of

each set

(b) plus

Symbol

(8267 (8269 C8303 (8304

C8310 (8314

(8322 C8401 C8402 (8403 C8404 C8406 C8407 (8409 (8411 (8412 (8413 C8414

Quantity

through

of

the

········

........

····

············

................

..

.....

.

....

...

...............

Quantity

five plus the

500-hour

quantities

Quantity

········

....

...

.

.........

...

.....

.

units

one

is

for

DIODES

CR8201

(F0841) ..... ........

CR8207 (FOG3091) .............. 1

CR8211

(IN752) .................... 1

..... 5

ELECTRICAL

J8101 J8202

P8001

CONNECTORS

6-5

section

6b -spare

parts

list

Symbol R8100

R8101 R8102 R8104 R8105 R8106 R8107 R8108 R8112 R8113 R8114 R8116 R8119 R8121 R8122 R8129 R8132

R8134

R8136 R8137 R8138 R8139 R8141 R8142

R8143

R8148 R8149 R8151

R8152 R8153 R8154

R8201 R8204 R8205 R8206 R8207 R8208 R8211 R8212 R8213 R8214 R8216 R8217 R8218 R8222 R8223 R8226 R8228 R8229 R8231 R8232 R8233 R8234 R8236 R8237

R8238 R8241 R8243 R8248 R8261 R8263 R8264

R8265

R8266

Quantity

................ 1

......... 1

···•············ 1

······ ·········· 2

................ 1

...... ......... . 1

...... .......... 1

................ 1

..........

...... 1

·············

···

··

········· ····· 1

................ 1

................

RESISTORS

1

1 1 1

1 1

5

1

1 1

1

1 1

1

1 1

1

1 1 1 1 1

1

1 1 1

1

1 1

1

Symbol R8267

R8268 R8269 R8271 R8273 R8274 R8275 R8276 R8277 R8278

R8281

R8284 R8286 R8301 R8302 R8303 R8305 R8306 R8311 R8312 R8313 R8314 R8315 R8316 R8317

R8320

R8321 R8322 R8324

R8327 R8328 R8329

R8337

R8338

R8339

R83ll4

R8347

R8351

R8352

R8353

R8355

R8357

R8401

R8402

R8405

R8406

R8407 R8408

R8409

R8411 R8412

R8413

R8414

R8416

R8417 R8418 R8419 R8421 R8422 R8424 R8427 R8428

R8429

Quantity

1

1 1 1

1

1 1

1

1 1 1 1 1 1

1 1

1

1 1 1

1 1

1

1 1

2

1 1

1

1 1

1

1 1

1

1 1 1 1

1

SWITCHES

Stock

only

one

each

of

the

following

each 3

than~

quantity

units

NOTE:

normal

being

maintained:

S811,

S813,

5814, 5821,

Should a particular

use m

stocked

of

certain

that

particular

5842

switch

applications,

switch

doubled.

TRANSFORMER

Symbol

T8101

..............

...

.........

d.

Miscellaneous

The

following

one

for

each 2 units

Name

and

Bushing, shaft ..........................

Knab,

GP Knab Knob, Knob, Knob, medium Knob,

Knob

Knob Knob, Switch,

Panel, front ..........

# 3 .......................... Time/Div ........................ 4500 9035

, fastener ....................

small .............................. Position ................

medium .....

small

# 1 ......

.......................

, knurled .........

lever .....

push-button .................. Reset ............................ 0503 2190

e.

Summary

The

quantities paragraphs duty

under

tions .

It

is

items

may

being

maintained:

Description

..................... Variable ........................

.......................... Sweep Selector ............

................

...

................

........

..........

...

.......

.............

of

are

intended normal suggested

Name of Control

Swp

......

Plug-in

Trig HF

spare

Stab ..............

.......

parts

......... Gnd

...

......... Triggering ....................

for

environment

that

Quantity

......... .

be stocked

Cal

..................

Lock

..................

Level

............

Post

........

................

...............

...

..............

given

industrial

and

the

maintenance

in

........ 4501

...

.......

in

heavy-use

evaluate:

1.

The

conditions

under

which

the

instruments

be used.

2.

The

skill

of

the

3.

Other

4.

The

effects

of

instrument

It

is

recommended

outlined

ments

In

above be

of

the

availability

tensive life

higher

failure

similar

effect

items

of

procurement

adjusted

your

own

laboratory

first analysis,

of

spares

testing

rate

of

for

maintenance

on

down-time

that

inventories

according

the

factory

or

standby

your

instrument

any

specific

technicians.

hand.

time

on

your

or

plant.

recommends

equipments

component.

to

switches

receive

more

then

shou

ld

quantities

Part Number

......

4301

3581

4501

0431 2022

4501

2031

4501

.......

.....

the

and

2035

4501

2091

4501

2181

4501

2191

4501

2202

3201

3243

preceding

military

condi-

engineer

of

spares

organization.

of

spare

parts

the

require-

since ex-

has

shown

for

the

be

of

will

and

the

no

6-6

LIST

OF

RECOMMENDED

VENDORS

CODE

ABO

AER AHH ALB ALC ALCO

ALO

AMA AMP AMR AMX

APC

APH

ARC AST

AUT

BEL BNS BUR BUS CAN CBS

COE

CGW CH CHC CHM CIN CLS

coc

COM

cow

CPC CRL CST

CTC

CTS DAG DAL DLC DRK EBY

EDL

EIA ELC

ELD

EMC EMW

ERC

ESX FAST FCI FER GDE GE GEN GEP GLB GRC GRY GUD

HAM

NAME

Du

Mont

Aerovox

Arrow-Hart & Heg Allen-Bradley Allied Alco Ald Amoton Amp Amperite Amperex American Amphenol Arco Astron

Automatic

Bel

Burndy

Cannon CBS-Hytron Cornell-Dubilier Corning Cutler-Hammer, Chester Chatham Cinch Clarostat

Continental

Comar Continental-Wirt Electronics

C.

Centralab, Chicago Cambridge Thermionic Chicago Dage

Dialight Drake Hugh Edal Any Electra Eldema Electro

Elmwood Erie Resistor

Essex Elec

John

Fairchild

Ferroxcube

Good-All General

General

General Globe General Grayhill The The

Laboratori

Corporation

Control

Electronic

en Products

Electronic

Inc.

Electronics Products , Inc.

Electronics Inc. (Elmenco)

Corporation

fuse

Bourns Inc.

Engrg. Company

Bussmann

Electric

Glass

Cable

Electronics

Manufacturing

Mfg.

Electric

P.

Clare & Company

Standard

Telephone

Elec

Dale

tric

Products, Inc.

Corporation

Mfg.

H. Eby , Inc.

Industries

manufacturer

Manufacturing

Corporation

Motive

Sensors, Inc.

tronics

E. Fast

Camera

Electric

Instrument

Products

Industries

Radio

, Inc. Gudeman Hammarlund

Company

Products

Company

Phenolic

Electronics

Metal

Produ

Mfg.

Company

Division

Electric

Works

Inc.

Corporation

Co., Inc.

Carbon

Division

Company

Mfg.

Corporation

Company

Corporation

Company

Corporation

Company

es

eman Electric

Hardware

, Inc.

Corporation

cts

of

CBS

Corporation

Company

of

Globe-Union,

Transformer

Corporation

Supply

, Inc.

mee

ting Company

Company

and

Instrument

of

Mfg. Company

Corporation

Manufacturing

Company

Corporation

EIA

standards

Corporation

America

Co., Inc.

Inc.

CODE

HON

HOP

HP

IEC IRC IRP

ITT

JEF

JHN

JWM

KUL KXM

LED

LEE LFI

LIN

MAL MCR

MIC MIL MOT MOY

MUC MUT NYT OAK PHC PHI PLS POT PRC PYR RCA RMC ROY RTN SIG

SIL

SLT SOL SPG STC STW SUM

sww

SYL

SYN

TEC TEX

THC TOR TRS TRU

TUG

UCN

UTC

VIC WDE WDL WES WYN

NAME

Honeywell

Hopkins

Engineering

Hewlett

-Packard International International International ITT

Compon Jeffers E. J. W . Kulka Klixon Led ex Inc. Leecraft littlefuse, Line Electric P.

Micro

Regulator Micamold Miller Motorola

M-0

Mucon The New Oak Philco Philips Plastoid Potter &

Precision Resistor Co., Inc.

Pyramid Radio Radio Royal Electric Rotron Signalite

Silicon Transistor

Sealectro

Solitron Devices, Inc.

Sprague Stackpole Standard Summit Stanwyck Sylvania

Syntronic

Transistor Electronics

Texas

Thermal Torrington

Tresca , Inc.

Tru-Ohm Tung-Sol Ucinite

United

The Wood Ward

Weston Elec

Welwyn

ents

Electronics, Inc.

F.

Johnson

Miller

Electric

Metals

Mfg. Company

Inc.

R.

Mallory & Company,

Switch

Co.)

Electronics

Electric

Semiconductor

Valve

Company

Corporation

Muter

Company

York

Transformer

Mfg. Company

Corporation

Electronic

Corporation

Brumfield,

Electric Corporation Materials

Mfg.

Inc.

Corporation

Electric

Carbon

Winding

Coil

Winding

Electric Products, Inc.

Instruments

Instruments,

Control,

Mfg

Products Electric Inc.

Company

Transformer

Victoreen

Electric

Leonard

trical

International

Company Electronics Resistance Rectifier

Division

Company

Mfg

. Co. Inc.

and

Control

(Division

Company

Tube

Company

of

Corporation

Corporation,

Company

Corporation

Company

Inc.

.,

Company

Instrument

Corporation

Electric

Instrument

Company

Corporation

of

Mfg. Corporation

ltd.

Company,

Inc.

America

, Inc.

Corporation

Company

Inc.

Corporation

Company

Corporation

Inc.

Minneapolis-Honeywell

Products, Inc.

Inc.

Division

Inc.

Company

Corporation

INSTRUMENT

WARRANTY AND

SERVICE

NOTICE

WARR

ANTY

The Instrumentation

CHANGES

The right is reserved to specifications of equipment nish merchandise in accordance with fications without equipment previously sold, ment in accordance with earli ecifications cepting under the

IN

SPECIFICAT

incurring

cl

IONS

change

at

any liability to modify

or

10n

the published

any time

to suppl uip·

of special

and

current

apparat

to fur-

speci-

x-

)!I

ii

promptly

·

warranty

expressed

orized to assume any liability on

of

Fairchild it in connection with the sale of any Instrument, other than as stated above.

REGISTERING THE

To register this warranty, the enclosed

registration

mailed to the

diately upon receipt of the equipment. Complete

information is necessary. BOTH BER AND STRUMENT MUST BE

Instruments must be examined immediately upon

receipt, since claims be honored by the

taken.

card

THE

or

impose any obligation upon

WARRANTY

must be properly filled

Instrument

SERIAL

Service Department imme-

NUMBER OF

Gl

VEN ON

for

damage in transit will not

carrier

unless

or

THE

prompt

is in lieu

implied, and

warranty

out

and

TYPE

NUM-

THE

THIS

CARD.

action is

IN-

REPLACEMENT PARTS

If

it is necessary to nent from the factory, always give the Type and Serial ing parts for in-warranty replacement them for out-of-warranty replacement, consult the The and ponents used in the Instrument. expedite service.

PATENT NOTICE

Manufactured owned strument Corporation. ton, New Jersey, U.S.A. upon request.

number

Parts

List gives the values, tolerances, ratings,

Fairchild

or

part

controlled by

order

a replacement compo-

of the Instrument. Before order-

or

purchasing be

List in the

number

under

one

Instruction

for

all electrical com-

This

will help to

or

more

U. S.

Fairchild

50

Patent

Camera

Somerset Place, Clif-

Numbers

number

sure

to

Manual.

Patents

and

In-

supplied

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·HO

\

Pos1i-1c.vt---J

h h f h

ange

\I

. I R

TYPE

change

circuit

REVISIONS

List,

Part

REVISIONS

titled

t e

arrangement

---~Vv'v"-

-

r..:

- -

I

I IS'

1

I

-----

.Jvv.-..,._-c:z~

RB30~

I<.

S3

1'f

~OK

v---1

..

--

'----J\/\/l/'--

74-03A TIME

Manual

Part

improves

by

providing

change

the

Number

0107 3421

"Type 74-03A Hor

R83oq

1001<.

-

~O

. . -

R83

I~

5"101<

BASE

PLUG-IN

Number 6704

the

operation

an

independent

description

of

Description

variable,

30K,

Defl

o t e POSITION

V

4063)

of

the

Vernier

R8306

+10%,

Amplifier, control

Display

Control.

as

follows:

Reco

3/4W FCI

Sheet

as

follo·ws:

rrnne

nded

Vendor

3

D.

OTHER

CHANGES

Photographic

configuration

BEFORE

vie

ws

of

the

of

the

front

Position

panel

controls.

INSTRUMENTATION

A

DIVISION

OF

FAIRCHILD

CAMERA

ANO

do

not

INSTRUMENT

AFTER

depict

CORPORATION

the

current

6704 8481 PCN Code ift64

32.,441

ADDENDU

TO

M

A.

PURPOSE

To

B.

PARTS

Make

Change:

OF

improve

LIST

the

Symbol

C8263

C8264

TYPE

Fairchild

ENGINEERING

blanking

REVISIONS.

following

Part

0317

74-03A

CHANGE

gate.

changes

Number

5140

6710

INSTRUCTION

Part

to

the

No.

Parts

6704

Description

30pf

680pf

MANUAL

4063

List:

Reco

mmended

Co

de

EMC

Vendor

Typ

e

DM15

DMlO

Add:

C.

R8274

R8287

R8288

SCHEMATIC

1.

Change

0236

0235

0236

REVISIONS.

the

value

Symbol

C8263 C8264 R8274

5340

4140

3140

of

the

Old

442,

composition,10,l/4W

330K

following

Value

Slpf

lOOOpf

499-"-

±1%

components:

New

30pf

680pf

442-r...

CGW

ALB

C~W

Value

cs

CB

cs

6704 PCN Co

de

P

age

8721

#32,607

#65

1

of

2

INSTRUMENTATION

A

DIV

ISION

OF

FAIRCHILD

CAMERA

ANO

INSTRUMEN

T

CORPO

RAT

ION

C.

2.

3.

SC

HEM

ATIC

Add R828

and

ground.

Add

R8288,

ground.

7,

REV

I SI ONS

a ln.n..

a

330K

(Continued)

resistor,

ohm

resistor,

in

s e

ries

from

with

the

emitter

of

Q8206

Q8

Page

207

to

2

of

2

BSffl,6_..,ll'IBr#llA

INSTRUMENTATION

A

DIVISION

O F F

AIRCHILD

CAMERA

AND

INSTRUMENT

CORPORATIO

6704

8721 PCN #32,607 Code #fi5

N

ADDENDUM

TO

A.

B.

TYPE

74-03A

Fairchild

PURPOSE OF ENGINEERING C

To

correct

PARTS

Revise

Symbol

C8403

LIST

linearity

REVISIONS

the

instruction

Part

0236

Number

87

60

problem

INSTRUCTION

Part

No.

HANGE

in

manual

parts

Description

capacitor

0.86

uf,

MANUAL

6704

timing

list

,

plastic,

±1%, lOOV

4063

circuit.

as

follows:

Recommended

Code GUO

Vendor

~

355B

r=AI

INS

A D I VI

SION

T R

O f

RCl-l

UMENTATION

FAIRCHILD

CA

MERA ANO INS

I L..CJ

T R U M E N T

CO

RPORA

llO

~

6704 Sheet

PCN

8941

1

132,656

Code f 66

of

1