GENERAL RADIO COMPANY 1543 Strobotac Instructions Manual

INSTRUCTIONS

General

Radio

I

MOUNT

INSERT

(HIDDEN)

Figure 1.

Type

1543

Strobotac.

PURPOSE.

The Type 1543 Strobotac produces a bright flashing
light over a wide flash-rate
suited

for

use

in industrial applications
maintenance
aid

in the classroom. Additionally,

to operate

tool,

and

inexpensive.

as

part

range

to

stop motion.

as

an

engineering or

of

a photography setup, or

it

is

small, light, simple

It

REFLECTOR -

COVER

SLOT

is

well

as

an

Type

1543

(Electronic

Stroboscope)

Strobotac®

specifications

Flash Rate 180
Duration'
Watt Seconds
Beam

Candella

Beam

Width

1.

Measured

silicon

photodetector 1 meter

at

Y.

External Trigger: Std. phone jack, operated
device.

Sub·Mult Mode: Provides ±0.1% accuracy
to

Environmental:
75°Cstorage.

Power: 105
Mechanical:

(107X157X198
shipping.

intensity

submultiples

of
TEMPERATURE: 0 to

Humidity:

to

125

DIMENSIONS
mm).

Catalog

Number

1543-9700
1530-9410 . Replacement

2

3

at

peak-intensity

points.

the

line frequency.

95% RH

V,

50

to

WEIGHT

1543

Strobotac

fpm

4J.LS

0.6 0.16

6

30X10
11° 11°

points.

2.

from

lamp. 3.

50°C operating,

at+40°C.

60Hz,

25 W max.

(wxhxd): 4.2X6.19X7.8

: 3.51b (1.6

Description

Strobotron

3800

fpm

6J.LS

6

4X10

Measured

Measured

by

contact-closure

by

synchronizing

kg)

net,

Flash Lamp

51b

with

-40

(2.3 kg)

to

in.

DESCRIPTION.

(Figure 1)

The 1543 features simple pushbutton control

to

single knob
necessary
number

control the flash ra.

. An uncalibrated dial indicates the approximate

of

flashes

per minute. Modes
normal, line frequency sub-multiple,
The light

output

is

electronically compensated
constant subjective brightness
the light intensity

The instrument

that

is

shaped

increases)

is

housed

for

comfortable hand-held operation.
Alternatively, a threaded hole
a tripod or a bail-type
as

a carrying handle or a bracket to

stand

te-

no

range

switching

of

operation

and

external trigger.

for

relatively

(as

the flash rate

decreases,

.

in a high inpact plastic

is

provided

for

mounting on

. The stand (supplied) doubles

hang

the instrument in

a convenient location.

MOUNTING.

A stainless-steel insert, which will accept a standard

1/4-20 tripod thread,

for

bail

or

tripod mounting . To tripod mount the strobotac

remove the bail by turning its knob ccw.

end

threaded

of

is

built

the tripod

into the bottom

pan

head

into the insert

of

the

Screw the

hand tighten.

with

are:

case

case

and

a

CONTROLS, CONNECTOR,

is

The controls, connector,

described in Table

PRELIMINARY

With the power connected,

1.

CHECKS.

Refer

AND

INDICATOR.

and

indicator

to

the illustration

depress

are

the ON-OFF
NORMAL buttons. Turn the flash-rate knob through its
range

- there should

Set

the flash-rate knob to the high

be

no

erratic action

end

of

the flash tube.

and

LINE-FREO-SUB-MULT button. The instrument

with

synchronized

the line at 3600 flashes per min. Slowly
turn the dial in a ccw direction. The flash rate
at 3600/2, the first submultiple
Additional
dial
pond

changes

is

turned toward the low end.

to

other submultiples

expect the flash rate

Depress

the

a contact-closure device

to

ground
flash

the rear-panel phone jack. The strobe should

each

time the device

in the flash rate

to

change

EXTERNAL

(such

is

activated.

of

the line frequency.

will

be

noticed

These

changes

of

the line frequency. Do

continuously in this mode.

TRIGGER

button

as

a switch) isolated from

listed

of

Figure 2.

depress

will

and

connect

and

and

the

is

now

change

as

the

corres-

not

FORM

NO.

1543-0100-A

©GENERAL

RADIO

COMPANY

DECEMBER

1971

OPERATING PROCEDURE.

To operate the 1543:
a.

Plug

the power cord into a 115-V 50/60 Hz source

ac

Depress

Depress

of

operation .

I ine socket) .

the ON-OFF button

to

turn the strobe on.

the switch that corresponds to the desired

(standard

b.
c.

mode

NOTE

One

of

the mode buttons must

before the strobotac wi

d. Point the strobe

II

operate.

light toward the motion to

be

depressed

stopped.

e. Except
the flash-rate knob
stops. The

Figure 2. Rear-view showing controls, connector and indicator.

for

visual

the

EXTERNAL

until the visual

image

may

-TRIGGER mode, rotate
image

of

the motion

be

made

to move slowly

through its cycle by a slight readjustment
setting in either direction. Note: This
without

MODES

Normal.

flash
The number

positive stops.

OF

OPERATION.

In the

NORMAL

mode

of

operation the strobotac will

at a rate determined by the flash-rate control setting.

of

flashes

can

be

is

a ten-turn control

varied between 3

flashes/sec.

When

stopping the motion

ded

that the dial

be

slowly reduce the flashing rate until the object motion

be

initially

of

an

set

to the high

object,

stopped.

dial markings

The
flash rate. Following
accurately
students or

a.

(such
make

b.

calibrate the dial

for

special

Fasten

a disk to the shaft

as

the Bodine Electric Co. model

a single mark on the outer surface

Cover the flash-rate dial

are

approximate indications

is

a procedure that

and

is

useful

as a lab

industrial applications:

of

a synchronous motor

no.

of

of

the strobotac with masking

tape.

c. Turn on the strobotac

d.

Depress

light on the outer surface

strobe

the

NORMAL

e. Turn the flash-rate

Slowly turn the dial ccw until the first double

f.
of

the mark on the rotating disk
on

the flash-rate dial

case

as

instrument

g.

Continue turning in a ccw direction

to

correspond

This calibration
with

ambient temperature

a reference.

with

Table 2.
is

simply remove the masking tape

and

the synchronous motor.

mode button

of

the rotating disk.

dial

fully

cw (hignest flash rate).

appears.

as

3600 rpm,

using

temporary, inasmuch

or

line voltage. To recalibrate

and

Mark this position

and

·repeat the above

procedure.

of

the knob

and

63

it

is

recommen­end

. Then,

of

the

can

be

used

to

project

NSY-12)

for

and

the disc.

and

train the

image

the mark on the

mark the dial

as

it

may

change

is

Fig. 2

Item

2

3

4

5

6
7

EXTERNAL

LINE
NORMAL

ON-OFF

Name

FREO

TRIGGER

SUB-MUL

T

2

CONTROLS,

On-off

On-off

On-off,

1

0-turn

(without

Flash-rate
to

3500
On-off,
Phone jack, mates

Switchcraft
conductor

CONNECTOR,

Description

, pushbutton

, pushbutton

pushbutton

potentiometer

stops)

dial, marked 500

pushbutton

Type

plug

Table 1

control

control

control

control

with
40,

or

equivalent

%-in.,

two

AND

INDICATOR

Selects

EXTERNAL

Selects

LINE

Selects

NORMAL

flash rate between

Varies

Indicates

Turns instrument on
Accepts

closure

only)

FREO

mode

approximate

EXTERNAL

Function

TRIGGER

SUB-MULT

of

operation.

180

flash rate per

or

off

TRIGGER

and

mode

mode

3780

input

of

operation

of

operation

flashes/min.

minute

(contact

Table 2

FLASH-RATE

Images

1 1800 900 600 450 360 300
2 3600

3

2700 1350 1080

DIAL

CALIBRATION

Revolutions

1200 720

MARKS

Per

Minute

514 400

200

4 2400 1440 1028 800
5 3000
6 2160

Line

Frequency

In the LINE-FREO-SUB-MUL T mode the strobotac

flash at a rate equal

(i.e.

3600, 1800, 1200 .

to

that

of
automatically switches from one submultiple
the flash-rate control
does

not

vary continuously.

This mode

measure

the slip

a. Mark the

2250 1500 1280

Submultilple.

to

a submultiple

..

240 fpm

the 60-Hz line

is

varied over its

of

operation

speed

of

motors. For example:

end

of

the shaft

1543 1350

with

within 0.1%).

range

can

be

of

a 1750 rpm induction

of

the line frequency

an

accuracy equal

The strobe

to

another

- the flash rate

used

to

accurately

will

as

motor.

b.

Set the strobotac

frequency

determine the

and

direct the strobe light on the shaft.

c.

Notice that the mark

slip
that occur in one minute. To determine the actual
the n:'otor subtract the slip

submultiple of the line frequency at which the

The

is

strobotac

nous motor

to

the high

flashing
in

the

end

speed,

above

and

to

the first submultiple

appears

count the number

speed

from 1800 rpm.

can

be

determined by

procedure.

depress

the LINE-FREO-SUB-MULT

of

to

rotate (slip). To

of

revolutions

using

a synchro-

Set

the flash-rate dial

the line

speed

of

button. Point the strobotac toward the outer surface
of

the disk

the mark should

knob ccw until a single
the first
flashes/min
will

be

alternate

and

turn on the motor. Two

be

seen

submultiple

or 1800 rpm). The

a double

image

between a single

images

180° apart. Rotate the flash-rate

image

appears.

of

the line frequency (60/2

and

each

and

This corresponds to

second

submultiple (60/3)

successive

double

image,

image

down

of

will

to

approximately the 15th submultiple.

External

Trigger.

In the EXTERNAL-TRIGGER mode, the strobotac will

at a rate determined by the frequency

flash
external-trigger device

camera

or a

PHOTOGRAPHERS

(such

as a cam

shutter). Refer

para. for

to

an

application

operated micro switch

the STROBES

of

this

of

FOR

mode.

the

NOTE

The trigger device must

with

both

sides

isolated from ground.

If

a contact device connected

be

a contact closure

to

the strobotac

is

operated at a frequency higher than 3780 fpm, the strobe

oscillator will automatically divide down
mate submultiple. The strobe

submultiple.

that

Noise

is

usually generated by a contact-closure device

are

when the contacts

design

to

is

increase

circuit

initial contact closure will

the
on

how

closed, due to contact bounce. The

such

that noise occurring up

the time constant

will

flash at a rate equal to

be

filtered out. Information

obtained from our service department

STROBES FOR PHOTOGRAPHERS.

GR

stroboscopes

multiflash photography . . In
have a "time"
sure).

an

"X"
exposure).
tripod mount.

an

Polaroid

Following

photograph

using

a. Find the guide number

are

widely employed in single

or

"bulb"

general

connection

the

synchronization connection (for single

adjustable aperture, a cable

film

is

recommended.

is

a procedure
the

EXTERNAL

for

TRIGGER mode:

for

the

to

of

this

by

special request.

camera

(for

multiple expo-

making a single-flash

film

speed

Figure 3).

b.

Measure

c.

Calculate the aperture setting using the following

formula: f/number =

d. Adjust the
e.

Depress

buttons

f.

Connect the
strobotac
adaptor cable
on this

the lamp-to-subject distance.

-:--:-:----,--....,...,..-......,.,---..,..,--.

1 + lamp-to-subject distance (ft.)

camera

the

of

the strobotac.

aperture to the calculated setting.

POWER

EXTERNAL

to

end

the shutter

with

and

the appropriate connector

release

a standard, two-conductor phone plug

Guide Number

and

EXTERNAL

TRIGGER jack on the

on

the

camera.

for

end.

The setup

is

now ready

to

make

a single-exposure

photograph.

1000

500

100

a::

~50

:::1!

:;)

z

....

0

:;)
(!)

10

5

I"

I

10

Figure 3. Guide-number chart.

50

v

100

Fl

LM

..,""

SPEED-

500

7

1000

ASA

the approxi-

to

15

ms

filter

can

used

should

release,

and

used

TRIGGER

Use

the

camera

5000

10,000

1543-J

after

be

and

a

(see

an

3

Following

photograph using the

a.

Perform

b.

Obtain the guide-number multiplier from Figure 4

multiply

c.

Calculate the aperture setting (with the formula
the single-flash procedure)
ber. Adjust the

d.

Estimate the strobe flash rate required

number

e. Adjust the
will remain open long enough
images

f. With the strobe flashing at the desired rate,
shutter

1.1

:.::

cz:

1.0

w

is

a procedure

LINE -FREO-SUBMUL TIPLE mode:

steps a and b of

it

by the guide number.

using

camera

of

images

to

be

recorded on

to

take the multiflash photo.

desired

camera

accordingly.

and

shutter

fi

I m.

for

making a multiple-exposure

the single-flash procedure.

the corrected guide num-

adjust the strobe accordingly.

speed

so

for

the desired number

""

and

in

to

give the

that the shutter

of

release

the

d. Rotate the screwdriver toward the reflector cover.

case

This action will pry the
bend the reflector cover slightly,
place

.

e.

Check

to

see

that the

and

then tighten the

f.

Age
for

ment

KNOB AND

RATE knob

of

case

attempt

setscrew

a minimum

Use

the following procedure to remove the FLASH

a.

Turn the knob

the dial aligns

b.

Grasp

and

pull the knob straight away from

to

c.

Remove

with

the replacement lamp by operating the instru-

DIAL

and

the knob

pry

case

of

REMOVAL.

dial:

ccw

with

the white mark on the

firmly

it

off

.

the knob bushing by loosening the bushing

a 3/32-in. Allen wrench.

outward

side

screws.

one hour.

until the last mark on the low

with

and

simultaneously

causing

panels

the fingers close to the

it

are

properly

case.

the{;ase-

to pop into

seated

end

don't

cz:

0.8

w

CD

:IE

::J

0.7

z

~

g

0.6

10

FLASH

Figure 4.

LAMP REPLACEMENT.

ded:

by turning them 2 turns ccw.

cover slot shown in Figure

quickly
instrument - do
reflector cover.

To

push

slot in the bottom half

retainer slot.

Guide-number

The following lamp-replacement procedure

a. Unplug the power cord.
b. Loosen the

c.

Insert the

d.

Snap

the reflector cover

rotating the screwdriver toward the

e.

Carefully pull the lamp

Install a Lamp:

a. Insert the new lamp pins in the socket

the lamp inward until

b.

Place

one end

c.

Place

the

100

RATE

- FLASHES

correction

case

screws

that

tip

of

a screwdriver blade in the reflector-

1.

not

be

concerned about breaking the

out

it

seats

of

the reflector cover

of

.the

case

tip

of

a screwdriver

1000

PER

for

repetitive flashing.

are

closest

out

of

the retaining slots by

of

its socket.

firmly.

.

\

\

10,000

MINUTE

'

is

recommen-

to

the reflector

rear

of

and

carefully

in

the retainer

hlr:~de

in the other

154~

the

NOTE

To

separate

should remain combined when the knob

moved, drive a machine tap a turn
the bushing
separation.

d. Recheck the dial alignment

loosening its setscrew.

KNOB

AND

To install a knob
a.

Place

mentioned

b.

Tighten the dial setscrew.

c.

Mount the knob bushing on the smaller shaft, keeping

the

end

of

bushing; tighten the setscrew.

If

the

bushing, the knob cannot

d.

Place

spring opposite the setscrew.

e.

Push

the knob

to

check that the retention spring

the bushing.

If

the retention spring in the knob is_ loose,

reinstall

slit in the inner diameter

the bushing from the knob,

to

provide sufficient grip

and

DIAL

INSTALLATION.

and

dial assembly:
the dial on the larger shaft
in

the removal procedure.

the shaft flush

end

of

the shaft protrudes through the

the knob on the bushing

in

it

in the interior notch

NOTE

until

NOTE

with

the outer surface

seat

properly.

it

bottoms and pull

is

seated

of

the wall.

or

two

for

remove the dial by

and

align the marks

with

the retention

in

the groove in

with

the small

if

they

is

re-

into

easy

it

of

the

slightly

4

ETCHED-BOARD MAINTENANCE.

WARNING
Potentially lethal voltages inside - this instru­ment should

be

serviced

by

skilled service

personnel only.

(Figure 5)

The following procedure

ase

the c

opening the c

:

a.

Unplug the instrument at least 3 minutes before

ase

.

b. Remove the

four case

is recommended

screws

from the dial

instrument.

c. Separate the

At

this juncture the instrument c
power-supply board attached
control board attached to the upper half
reflec

tor

and

simply pulling them

mended
problem

covers

for

has

will
Remove the
case;

remove the knob

upper

half (refer to the KNOB

two

halves

of

the

case

.

omes

apart

to

the lower half

of

backplate

can

be

separated from the c

loose

. Further disassembly

trained personnel only. However, once a

been

have

four

isolated

to

be

spacers

to

a particular component, the

removed

and

to

replace the component.

to

remove the lower half

dial assembly to remove the

AND

DIAL

procedure).

CLEANING.

CAUTION

Unplug

the stroboscope 3 minutes before cleaning.

Do

not

use

an
WET cloth
detergent

organic solvent.

or

sponge

solution

to

clean the

with

Use

a mild

case,

a damp NOT

reflector,

and reflector cover.

for

opening

side

of

with

and

the c

ase

ase

is

recom-

of

REMOVAL

soap

or

the

the
the

. The

by

the

PANEL

Figure 5. Interior view, showing

of the

Control Board

TROUBLE

and

ANALYSIS

the

Power Supply Board.

General.

is

This section

isolating a problem

components. Refer

nents.

Refer

to

intended

to

to

Figure 5

Figures 8

a component or a group

and

the

component

to

provide a method

to

identify major compo-

10

for

side

a schematic diagram

for

of

Item

Oscilloscope
Photoelectric

Battery

Isolation Transformer 115

Phone Jack 2

Resistor

Multi

•or

equivalei'lt

.t

Reg. trademark, Tektronix

Pickoff

meter

Table 3

TEST

EQUIPMENT

Requirements Recommended Type*

De

to

450kHz

Operating rate:
Requires: 3

9 V Burgess,

V,

30

conductor
100k!l,%W
Measures resistance and de

Inc., Beaverton,

63

pulses/s GR

to

25

V de, 0

to

100

W UTC

voltage Weston

Oregon

J.LA

Tektronixt

Type

Type R-72

Littei

-Jax

10%carbon

503

1536

2U6

Type

Analyzer

11

Model

980

5

AC

LINE

+----1

SHOULD BE USED

FOR TROUBLE SHOOTING

(STROBE CASE OPENED

ISOLATION

TRANSFORMER

3-V

TO

10-V

BATTERY

)

PHONE
JACK

100 k.n

SCOPE

STROBOSCOPE

Figure 6. Calibration setup.

and

to

Figures 9

and

11

for

a component layout

of

each

circuit.

Replace the Lamp

1.

The instrument

If:

will

not

flash on any mode

operation,

2.

The instrument will

satsifactorily in a

3.

The flash

4.

The lamp holds over (i.e., continuous arc).

Lamp

Does

On

NORMAL

GER

button

is

erratic,

Not

Flash:

Mode,

and

remove any connections
trigger jack. Check the voltage on V-C6.
700 V the problem
diodes V-CR 1 through V-CR5

Check capacitor voltages
300 V; V-C5 ~ 150 V.
change

the voltage on all. The defective one

not

flash in the dark

lighted

area,

Depress

the

EXTERNAL

If

is

on

the power-supply board. Check

for

an

open or short circuit.

as

follows:

If

one capacitor

V-C1

through V-C4

is

defective

but

to

the external

it

is

less

will

have

works

TRIG-

than

it

will

the

lowest voltage.

If

the voltage on V-C6

lem

is

on the control board. The following procedure

is

greater than 700

V,

the prob-

recommended.

a.

Depress

on

C-C1
b.

If

missing C-VR 1 may

c.

If

01

for

if

this signal

01

If

d.

03

for

is

low or missing.

the

NORMAL

to

be

approximately 27 V.

the voltage

the voltage

a sawtooth

is

missing.

the

signal

in

is

be
in

signal

button

low,

C-C1

may

short circuited.

step b is

step c is

present check the anode

of

approximately

present check the anode

and

be

a 150 -V sawtooth signal. Replace

If

the voltage

is

normal, the problem

check the voltage

defective,

14

03

if

V. Replace

if

this voltage

it

is

transformer T1.

On

EXTERNAL

instrument

does

TRIGGER

not

work in the

or

SUB-MUL

EXTERNAL

T.

If

TRIGGER

the

LINE-FREO-SUB-MUL T modes, check operation in the

NORMAL

mode.

If

this mode functions correctly,

02

probably defective.

On

EXTERNAL

external contact-closure device
so,

check the internal connections between A-J 1

control board. The next step should

TRIGGER only. Check

is

isolated from ground.

be

to

to

see

that

and

check 02.

If

the

the

this

transistor

is

not

EXTERNAL-TRIGGER switch.

Instrument Blows

If

of

the stroboscope continuously blows
a. Check the fuse value
b.

Check

for

Calibration Procedure.

The instrument should

brated unless
been

replaced.

The recommended calibration procedure follows:

a.

Make the setup shown in Figure 6

oscilloscope

~

controls
TRIGGER SOURCE
TRIGGER SLOPE
SENSITIVITY
SWEEP

is

b.

TIME/CM

Set the flash-rate control to the maximum ccw

position (min rpm).

observed.

c.

Measure

is

generated

by

approximately 300-360

of

of

d.

Set

(max rpm)

e.

Adjust R3

step

d.

the flash-rate control

and

again

f. Adjust R13

in

The instrument

180-3780 fpm.

or

If

you

need

more information, we

is

A Primer

troduction

16-page

of

Stroboscopy - free; a 20-page illustrated in-

to

stroboscopy. Using Stroboscopy - free; a

reprint
advanced techniques
graphic

If

odic pub
strumentation

aspects.

I ication devoted

in

lS.U-1

defective, check the wiring

Fuses.

fuses:

to

be% A.

defective power supply components.

NOTE

not

have

to

be

recali-

it

is

damaged

as

follows:

or a component

and

has

adjust the

...

..

An

oscilloscope pattern should

the period between the negative

the photoelectric pickoff.

It

should

ms.

to

the maximum

for

for

measure

1/21th

a period

is

the period.

of

the period

of

16

ms.

now calibrated

to

have

with

fundamental information on basic

of

stroboscopy, especially the photo-

Strobotactics - free;

to

the latest techniques

an

the strobe field. Handbook

cw

as

measured in

flash at rate

it

in abundance:

info!mative peri-

of

High-Speed

to

the

..

INT

negative

1V/CM

100

ms

be

pulses

be

position

of

and

and

in-

6

Photography - $1.00; a 92-page detailed discussion

strobe photography. The Handbook

$2.00; a 117-page comprehensive
tailored

WARRANTY.

sold by
and
with
after original shipment.

is
standards, after examination
or authorized repair agency personnel,
at our option,
that

to

your

needs.

We

warrant that

us

is

that, properly

applicable specifications

found

within

have

given normal

each

free from defects in material

used,

the two-year period not

replaced

new instrument manufactured

it

will

perform in full accordance

for

Any

instrument

by

our factory, District Office,

without

service.

of

Stroboscopy -

work

on stroboscopy

and

workmanship

a period

charge, except

of

or

component

to

will

be

two

meet

repaired or,

for

lamps

of

and

years

that

these

FIELD

SERVICE.

The two-year warranty stated above attests the
materials
difficulties do occur, our service engineers
way
of

the following service instructions,
our
trouble
the type number

Before returning

service,

District

of

this

For instruments

order

4 5

and

workmanship in our products.

possible.

Service Department, giving fu

should

If

the

difficulty

and

of

steps

taken

of

the instrument.

an

please

contact our Service Department

Office, requesting a "Returned Material"

tag

will

ensure proper handling

not

covered

be

forwarded

cannot

to

remedy it.

instrument

by

to

avoid unnecessary delay.

6

7

be

please

II

information

Be

to

General Radio

and

the warranty, a purchase

eliminated

quality

will

assist

write

or

of

sure

to

mention

or

nearest

tag. Use

identification.

of

When
in any
by

use

phone

the

for

Fig

Ref

1 1
2 3
3
4
5

6
7 2
8
9

ant

1
1
1

1

1
1
1
1

Figure 7. Mechanical

Description

Connector,
Pushbutton
Pushbutton
Knob
Dial

asm.,

(APPRO
Top

housing

Side

pan

Bottom

Power

Stand

Reflector

telephone
knob,
knob,

asm.,

inc.

FLASHES PER MINUTE

X)

housing

cable,

10

asm.

cover

parts-

rear view.

MECHANICAL

jack,

A-J1,
black
gray

fastener

ft.

PARTS LIST

GR

Part

No.

4260-1031
0861-5988
0861-5987
5220-5401

MfgCode

82389
71590 J52305
71590 J52304
24655

Mfg

Part No.

Nll1

5220-5402

Fed

1543-1030 24655 1543-1030

1543-7040 24655
1543-7020 24655
1543-2030

24655 1543-2030
4200-3010 24655
1543-9800

24655 1543-9800

1543-7040
1543-7020

4200-30JO

1543-7000 24655 1543-9800

7

Ref

Des

CAPACITORS
Cl

C2
C3
C4
C5

Elect.,
Mylar,
Tant.,
Cer.,
Mylar,

CONNECTORS
Jl

P3

Mult

Mult, Plug, 6

DIODES
CRl

thru
CR4
CR5

VRl

Type
Type
Type

RESISTORS
Rl

R2
R3
R4
R5
R7
R8
R9
R11
Rl3
Rl4
Rl5
Rl6
Rl7

Rl8

Rl9
R20
R21
R22

Comp.,

Comp.,
Pot
Comp
Pot
Comp.,
Comp., 1 MQ
Comp.,
Comp.,
Pot
Comp.,
Comp.,

and

Comp.,
Comp.,
Comp.,
Comp.,
Comp.,
Comp.,

Comp.,
Comp

Comp.,

R23 and
R24

Comp.,

Description GR Part No.

80 flF +150-10 %, 200 V

0.39 flF ±10%, 100 V

1.0 flF ±10%, 35 V

.01 flF ±10 %, 100 V

0.2 flF ± 10%, 200 V

Jack, 4 Contacts

Contacts

1N4009
1N3254
1N971B

18

kQ ±5% 2 W

3 H2 ±5 %

., 47 kQ ±5%

Dual Sht

10 kQ ±5%

4.3 kQ ±5%
51 Q ±5%

6.8 kQ ±5%
51

330 kQ ±5%

120 kQ ±5%

P.C.,

±5%

P.C.,

kQ ±5%

1/2

W

5 kQ ±30%

1/2

W

P.C.,

1/2

W

1/2

W

1/2

W

1/2

W

2,5 kQ ±30%

1/2

W

1/2

W

1/2

W

1/2

W

27 kQ ±10% 1 W

10

Q ±5%

1/2

1/2

1/2

1/2

W

W

W

W

100 kQ ±5%

5.6 kQ ±5%
10

Q ±5%

ELECTRICAL PARTS LIST

1543-4700 CONTROL

1.0

MQ

±10%

BOARD

Mfg Code

4450-6167

4860-7979
4450-4301
4402-3108
4860-7948

90201
84411 663UW, .39
56289
01121 SV5011
84411

4230-4154 00779
4220-4155

00779

6082-1012 07910
6081-1002 07910
6083-1049 07910

6120-3185
6100-2305
6049-0331
6100-3475
6045-0440
6100-3105
6100-5105
6100-2435
6100-0515
6049-0330

01121
01121 RC20GF302J

71450

01121

71450

01121 RC20GF103J

01121
01121
01121 RC20GF510J
71450

C

Fed

80 flF +150 -10%
150Dl05X903

663 UW,

1-480426-0
1-480276-0

1N758A

1N748A

1N971B

RC426Fl83J

X201-2RS

RC20GF473J

CFVA-U45

RC20GF105J
RC20GF432J

X -201

Mfg Part No. Fed

.2

6100-2685 01121 RC20GF682J
6100-3515

6100-4335
6100-4125
6110-3279
6100-0105
6100-4105
6100-2565

6100-0105

01121
01121

01121
01121 RC20GF279J
01121
01121 RC20GF104J
01121

01121

RC20GF513J
RC20GF334J

RC20GF124J
RC20GF100J
RC20GF562J
RC20GF100J

flF ±10 %

5A2

flF ± 10%

Stock No.

5960-800-3973

5905

-249-4225

5905-279-1751
5905-254-9201
5905-185-8510

5905-192-0390

5905-257-0935
5905-279-

3517

5905-279-3503
5905-279-3496

5905-279-2519
5905-192-3981

5905-190-8883
5905-195-6761
5905-195-6453

5905-190-8883

SWITCHES
Sl

thru

S4

Pushbutton,

Multiple,

4Sec

TRANSFORMERS
Tl

Trigger

TRANSISTORS

Type

Ql
Q2

Q3

Q4

8

Type
Type
Type

Dl3Tl
2N3391A
RTJ0220
2N3414

7880-2020 71590

1542-0410 24655

8210-1210 24454
8210-1092
8210-1215
8210-1047

24454

12065 RTJ0220

24454 2N3414

PB-15

1542-0410

Dl3Tl
2N3391A

5961-989-2749

WJI

P3,5

REMOVE

Rl

18K

2W

VR/

27V

.SEE

Yt:

FOR

CONTACT

INSTRUCTION

R2

3K

+

C/

BO_p

•21

R7

/01<

80UIV'C£

BOOK,

\

CRI

FILTERING

R23

/Of<

RU

/OA

RI/S

UOK

R8

Rl7

3301<

A·Vf

R/1

5/JL

R9

4.31(

L---,---~~

IM

f~l(

1?14

'- -

8K

RIS

511:.

~~~~~~l~J

ov-r

53

0~------------:.-p~l/

1~

FllOM

lOO

K

Cb

~of:r~

OUT

~

5/

~O~

~~

IN

~

RD

..

P-"6

TRAN.SISroR..

• G K

\.-.-.7

' /

"''

~!=~J.~:~~~s~~~~~~·A"c,;,'"o:.,~.•::

VOLTAGES

EXPLAINED

c==:::::l

• PANEL CONTROL

0 • SCREWDRIVER CONTROL

COMPLETE

REFERENCE DESIGNATION

LETnR,

C·R1,

8-Rl,

Figure 8. Control Circuit

8ASIN6

e c a

r.-

.-.

7

'..__../

QZ

IN

INSTRUCTION BOOK SERVICE NOTES

ETC

.

1

c:::::

WT

• WIRE TIE TP •

INCLUDES

8

11

0"

:J

• REAR CONTROL

-schematic

EOC

•

Q3

TEST

POINT

SUBASSEMIL Y

8

Q4-

diagram.

~OUTPUT

~

-----{>OUTPUT

C>----

1543-0700/8

0

ASM

1543-

4700

Cl

R

I

3

CONNECTIONS

LEAVES SUBASSEMBLY

INI'UTFROMOIFFERENTSUBASSEMBLY

REMAINS

ON

INPUT FROM SAME SUBASSEMBLY

SUBASSEMBLY

A-C6

22p

;·~

Lo:

-~

FROMCV

R~Fi..ECTOR

ASM

15

43

·1000

S3

Figure 9. Control

circuit -etched

circuit

diagram.

(P/N 1543-4700)

{

NOTE: Orientation: Viewed from foil side. Part number: Refer

Symbolism: Outlined area = part; gray

= other side. Pins: Square pad

(of

diode),

or+

end (of capacitor).

in

ckt

pattern .(if any)

ckt

pattern collector, 1-C pin 1, cathode

=parts

to

caption .

side, black

9

ELECTRICAL PARTS LIST

1543-4710 POWER 'SUPPLY

BOARD

V

Ref Des

CAPACITORS
Cl

C2
C3
C4
C5
C6

Elect., 7 f.IF
Elect., 7 f.IF

and

Elect.,
Elect.,

Paper, 2 f.IF

CONNECTORS

J3

Mult

DIODES

CRl

thru
CR4
CR5

Type
Type

FUSES
Fl

Sla-Bla,

RESISTORS
Rl

R2

R3

Camp., 1 MQ
Camp.,
Camp.,

Description

+150-10%, 400 V
±20% .375 V

35

f.IF

+150-10% .375 V

80

f.IF

+150-10% 200 V

±10% 1000 V

Jack, 6 Contacts

1N4009
1N3254

lA

±5%,

13

kQ ±5% 1 W

22

Q ±5% 1 W

1/2

W

GR

Part

No.

4450-6162
1543-0420

4450-6166
4450-6167
1543-0400

. 4230-4155

6082-1012
6081-1002

5330-1400

6100-5105
6110-3135
6110-0225

Fed

Mfg

Code

90201

Mfg

20/0000463441/01/00

24655 1543-0420

90201
90201

20/000046339/01/00
20/000046340/01/00

24655 1543-0400

00779

1-480273

24446 1N4009
09213

71400 MDL,

01121
01121
01121

1N3254

lAmp

RC20GF105J
RC32GF133J

GB,

22

Q ±5%

Part

-o

No.

Fed

Stock No.

5961-892-8700
5961-082-3988

5920-852 -6322

5905-192-0390
5905-279-2549

CAUTION/

USE: I

SOLA/IO

E:.R WHE:

FOR. M

INC.

T"H IS

Figure

10.

Power

10

N

TRANS

N T"t:::5T'-

/NSTR.UMG:NT'

supply

circuit-

·

schematic

J3,

3 J

llbAC

.....___

diagram.

3,6

---+

---(>

t>---

/M

P.l

R Z

!51(

2 W

OlO."''"

LU¥1:1

'""""

f-

QIITN1

11(11"*1

o-1

f-I

..,..ossu•eu

IIW'fii(IIT

010

.UO(

...Ui

SUftoSI(IIIl.1

- Utlltk

BR

ro

PtN

•

I-IV

IH

-Z

C(,

2A

RT-1

TOV1

YE

PIN

f-.T

T

+

J 3 P3

\1

1

4

-7

l>-----t7

:I

ISO

,-

I '

2

6

3 /

'-----

>-

W

8K

OR.

..

JI,Z

r

RD

..._

1/SV

Y£

_.

/.OW

lf

..

To

R./5

r

~R.I

C>

,_

'<t"

I

<"')

'<t"

Ln

:I:

V)

<

'<t"

'-

=

,.._

C>

C"')

...,.

'"

,ez.

c

I

I

Figure 11. Power supply circuit -

Ref

Des

etched
(P/N

1543-4710)

circuit diagram.

Description

CAPACITORS
A-Cl

thru

A-C6

Ceramic,

22

pF

CONNECTORS
Pl

A-Jl

Mult

Jack

Plug, 4

Contact

POWER CORDS

Cable

Power,

Bk,

RESISTORS

A-Rl

R2

Pwr,
Pwr,

WW,
WW,

3.6

kQ ±5% 40 W

3.6

kQ ±5% 40 W

SOCKETS
A-SOl

Tube, 9 Contacts

±20% 4000 V

10

ft

NOTE: Orientation: Viewed from foil side. Part number: Refer

Symbolism: Outlined area = part; gray

= other side. Pins: Square pad

(of diode),

or+

end (of capacitor).

ASSEMBLY PARTS LIST

GR

Part No.

4428-3116

4220-4154

4260-1031

4200-3010

6631-2365
6631-2365

7540-3500

Fed

Mfg

Code

72982

00779
82389

24655

80131
80131

07233

in

ckt

pattern (if any) = parts side, black

ckt

pattern = collector,

Mfg

Part No.

pF

858, 22

±20%

1-480426-0
Nlll

4200-3010

RW21,

3.6

3.6

kQ ±5 %
kQ ±5%

RW21,

121-11-10-026

1-C

pin 1, cathode

to

Fed

caption.

Stock No.

WBES

A-Vl

Strobotron

1530-9410

24655

1530-4010

11

From Federal Supply Code

to

(Name

Code) and H4-2 (Code

00779
01121

07233

07910

12065

24454
24655
56289
71400
71450
71590
72982
80131
82389
84411
90201

Amp

Inc.,
Allen-Bradley Co.,
Wise.,
Cinch-Graphik,
Calif.
Cont

Device
Transition
Mass.
G. E.,

Electronics
General
Sprague
Bussman
CTS

Corp

Centralab,

Erie

Technological

Electronic
Switchcraft
TRW

Capacitor

Mallory

FEDERAL

for

PO

Box

53204

Div. of

Corp

Electronic

Radio Co.,

Electric Co.,

(McGraw

.,

1142

Inc

.,

Milwaukee

Industries

Inc

.,

Div

Capacitor Co.,

MANUFACTURER'S

Manufacturers Cataloging Handbooks H4-1

to

Name)

as

supplemented through August, 1968.

3608,

Harrisburg,

1201

South

United

.,

Hawthorne,

Corp.,

Comp

·.,

Syracuse, N.Y.

Concord,

N.

Adams,

Edison), St.

W.

Beardsley

, Wise.,

Products

Assoc.,

Chicago,

Ill., 60630

.,

Ogallala,

Indianapolis, Ind

CODE

Pa.,

2nd

Car

Inc.,

Calif.

144

Addison St., E.

Mass.

01742

Mass.

Louis, Mo.

Ave.,

Elkhart,

53212

Inc.,

Erie,

Washington,

Nebr

.

City

Penn

.

17105
St.,

.

D.C.

Milwaukee,

of

Industry,

Ind.,

Boston,

46514

I General

EASTERN

Connecticut,

380 Midland Avenue, Saddle Brook, New

Telephone: (NJ)

Maine, Massachusetts, New Hampshire,

Illinois, Indiana, Iowa, Kansas,

Missouri, Nebraska,

9440

West

Alabama, Arkansas, Florida, Georgia, Louisiana, Maryland, Mississippi

North

Carolina, Oklahoma, South Carolina, Tennessee, Texas,

P.

0.

Box 2205, 11420 Rockville Pike, Rockville, Maryland 20852

Arizona, California, Colorado, Hawaii, Idaho, Montana,

Nevada, New Mexico, Oregon, Utah, Washington,

Irvine Industrial Complex, Santa Ana. California 92705

Delaware, New Jersey, New York

Eastern Pennsylvania, Rhode Island

201

New

Bolton, Massachusetts

Telephone: [phone]

CENTRAL

North

Western Pennsylvania, Wisconsin

Foster Avenue, Chicago, Illinois 60656

Telephone: [phone]

SOUTHERN

West

Virginia,

Telephone:

WESTERN

17361 Armstrong Avenue.

Telephone : [phone]

Alaska 907 279-5741

Radio

REGIONAL

791-8990 (NY) 212 964-2722

England Area

REGIONAL

REGIONAL

Virginia, (Wash. D.C.)

REGIONAL

CENTER

Jersey

07662

Vermont

01740

CENTER

Kentucky,

Dakota, Ohio, South Dakota,

301

Michigan, Minnesota

CENTER

881

-5333
CENTER

Wyoming

300 BAKER AVENUE, CONCORD, MASSACHUSETTS 01742

CANADA

General Radio

307

Evans

Telephone :

Montreal 514 737-2126

EUROPE,

General

P.

0.

Box 124, CH-8034, Zurich, Switzerland

Telephone: [phone]

ASIA,

PACIFIC, and

General Radio International Division

Concord,

Cable: GENRADCO CONCORD

56 Winthrop Street, Concord, Massachusetts 01742

490

Telephone: [phone]

San

Antonio

Telephone: [phone]

Canada

Avenue,

Toronto
416 252-3395

Ottawa 613

Radio Company

233-4237

AFRICA,

GR COMPANIES

and NEAR EAST

LATIN

Mass

01742

G rason-Stadler

Time/Data

Road,

Palo

Alto,

Limited

530 Ontario

(Overseas)

AMERICA

(Mass)

California 94306

Printed

in

USA