Collins 830B-1A Instruction Book

STEAM POWERED RADIO.COM

Collins Radio Company

I

Dallas, Texas

STEAM POWERED RADIO.COM

t .

GUARANTEE

The

equipment

described

herein

is

sold

under

the

following

guarantee:

Collins

agrees

to

repair

or

replace,

without

charge,

any equipm1rnt,

parts,

or

accessories

which

are

de-

fective

as

to

design,

workmanship

or

material,

and which

are

returned

to

Collins

at

its

factory,

transportation

prepaid,

provided

~

_,;

..

(a)

Notice

of the

claimed

defect

is

given

Collins

within two

~)

+Y

ear

from

date

of

delivery

and

goods

are

returned

in

accordance

with

Collins'

instructions.

\ ·-

(b)

Equipment,

accessories,

tubes,

and

batteries

not

manufactured

by

Collins

or

from

Collins'

designs

are

subject

to

only

such

adjustments

as

Collins

may

obtain

from

the

supplier

thereof.

(c)

No

equipment

or

accessory

shall

be

deemed

to

be

defective

if, due

to

exposure

or

excessive

moisture

in

the

atmosphere

or

otherwise

after

delivery,

it

shall

fail

to

operate

ina

normal

or

proper

manner.

Collins

further

guarantees

that

any

radio

transmitter

described

herein

will

deliver

full

radio

frequency

power

output

at

the

antenna

lead

when

connected

to

a

suitable

load,

but

such

guarantee

shall

not

be

construed

as

a

guarantee

of any definite

coverage

or

range

of

said

apparatus.

The

guarantee

of

these

paragraphs

is

void

if

equipment

is

altered

or

repaired

by

others

than

Collins

or

its

authorized

service

center.

No

other

warranties,

expressed

or

implied,

shall

be

applicable

to

any

equipment

sold

hereunder,

and the

foregoing

shall

.

constitute

the

Buyer's

sole

right

and

remedy

under

the

agreements

in

this

paragraph

con-

tained.

In

no

event

shall

Collins

have any

liability

for

consequentia

l

damages,

or

for

loss,

damage

or

expense

directly

or

indirectly

arising

from

the

use

of the

products,

or

any

inability

to

use

them

either

separately

or

in

combination with

other

equipment

or

materials,

or

from

any

other

cause.

HOW

TO

RETURN

MATERIAL

OR

EQUIPMENT.

If,

for

any

reason,

you should

wish

to

return

material

or

equipment,

whether

under

the

guarantee

or

otherwise,

you should notify

us,

giving full

particulars

including

the

details

listed

below,

insofar

as

applicable.

If

the

item

is

thought

to

be

defective,

such

notice

must

give full

information

as

to

nature

of

defect

and

identification

(including

part

number

if

possible)

of

part

considered

defective.

(With

respect

to

tubes

we

suggest

that

your

adjustments

can

be

speeded

up

if

you give notice of

defect

directly

to

the tube

manufacturer.)

Upon

receipt

of

such

notice,

Collins

will

promptly

advise

you

respecting

the

return.

Failure

to

secure

our

9

dvice

prior

to

the

forwarding

of the goods

or

failure

to

provide

full

particulars

may

cause

unnecessary

delay

in

handling of

your

returned

merchandise.

ADDRESS:

Collins

Radio Company

Service

Par

ts

Deparrrnen

t

Dallas,

Texas

75207

INFORMATION NEEDED:

(A)

Type

number,

name,

and

serial

number

of

equipment

(B)

Date of

delivery

of

equipment

(C)

Date

placed

in

service

(D)

Number

of

hours

of

service

(E)

Nature

of

trouble

(F)

Cause

of

trouble

if

known

(G)

Part

number

(9

or

10

digit

number)

and

name

of

part

thought

to

be

causing

trouble

(H)

Item

or

symbol

number

of

same

obtained

from

parts

list

or

schematic

(I)

Collins'

number

(and

name)

of

unit

sub-assemblies

involved

in

trouble

(J)

Remarks

HOW

TO

ORDER

REPLACEMENT

PARTS.

When

ordering

replacement

parts,

you should

di-

rect

your

order

as

indicated

below and

furnish

the

following

information

insofar

as

applicable.

To

enable

us

to

give you

better

replacement

service,

please

be

sure

to

give

us

complete

information.

ADDRESS:

Collins

Radio Company

Service

Parts

Department

Dallas,

Texas

75207

INFORMATION NEEDED:

(A)

Quantity

required

(B)

Collins'

part

number

(9

or

10

digit

number)

and

de-

scription

(C)

Item

or

symbol

number

obtained

from

parts

list

or

schematic

(D)

Collins'

type

number,

name,

and

serial

number

of

principal

equipment

(E) Unit

sub-assembly

number

(where

applicable)

STEAM POWERED RADIO.COM

•

-

~-.

.

••

523-0166000-00243A

2nd

Edition, 1 January 1967

~

COLLINS

~

instruction hook

830B-IA

250-Watt

FM

Broadcast Transmitter

This

manual

includes

:

SP

-183 830B-1A

250-Wott

FM

Broadcast

Transmitter

523-0755439

TD-536

A830-2

10-Wott

Wide-Bond

FM

Broadcast

Exciter

523-0755303

TD-53 7

786M-1

Stereo

Gen

erotor

( optional)

TD-538

B830

-1

250-Wott

FM

Power

Amplifier

523-0755304

52:3 -

0755596

~

Co

lli

ns Radio

Company 196

2,

1967

Collins

Rad

io

Company I Dalla

s,

Texas

Pr

inted

in

U.S.

A .

STEAM POWERED RADIO.COM

System

fustructions

---_,_

830B-

-

1A

250-Watt"°FM

.

Broadcast

Transmitter

523-0755439-002439

STEAM POWERED RADIO.COM

523-0755439-

2nd

Edition, 1 January 1967

~

COLJ_,INS

~

SP-183

002439

250-Watt

FM

system

Broadcast

instructions

830B-1A

Transmitter

CJ

Collin

s Ra

dio Company

1962,

1967

Collins

Radi

o Company I Dallas, Texas

Printed

,,/

i n

U.

S.

A.

STEAM POWERED RADIO.COM

I

Section

1

2

GENERAL

1.

1

1. 2

1. 3

1. 3. 1

1.

3. 2

1. 4

1. 5

1. 6

1.

6.

1

1. 6. 2

INSTALLATION

2. 1

2.2

2. 3

2.4

2.

5

2. 6

2. 7

DESCRIPTION

Purpose Purpose Description

Physical

Electrical Equipment Accessory Equipment

Mechanical

Electrical

Unpacking Transmitter External Internal Remote Frequency Change Starting

of

Instruction

of

Equipment

of

Equipment

Description

Supplied

Equipment

Specifications

.

and

Inspecting

Location

Connections

Control

the

Transmitter

.

Book

.

. . .

.

in a New

Ins

tallat

ion.

table

of

contents

Pa

ge

1-1 1-1

1-1

1- 1

1-1

1-1 1-1

1-2 1-2 1-2

2-1

2-1 2-1 2-1 2- 1

2-2 2-2 2-2

3

4

5

OPERATION.

3.

1

General

2

1

2

1

Starting

OF

General A830-2 B830

- l

Harmonic Control Plate

Contactor

General Normal Modulator Distortion Audio

Frequency

FM

Noise

AM

Noise

Trouble

3.

PRINCIPLES

4.

4.3

4.4

4.5

4.6

MAINTENANCE

5.

5. 2

5. 3

5.4

5.5

5.6

5. 7

5.8

the

Transmitter

OPERATION

. 10 W Wide-Band 250-Watt

Filter

Circuits

.

Tuning

and Testing

Measurement

Measurements

Shooting

FM

Power

and

Plate

Procedures

AFC

Discriminator

Procedure

Response

in

Normal

FM

Broadcast

Amplifier

Power

Supply

Measurements

Operation

Exciter

Adjustment

.

Procedures

3-1/3-2

4-1 4-1

4-1 4-1 4-2 4-2 4-2

5-1

5-1 5-1

5-2 5-2

5-5

5-6 5- 6

5-6

STEAM POWERED RADIO.COM

list

of

illustrations

Figure

1- 1

2- 1

2- 2 2-3

2- 4 4-1 5- 1 5- 2 5-3 5-4

5-5

list

Table 1

-1 1- 2 1-3 2- 1 5- 1 5-2 5-3

Overall

Outline

Transmitter Transformer Wired Plate Block

Distortion Audio

Audio

FM

AM

of

Unit ~quipment Accessory Crystal Abbreviated Tun Distortion Normal

View,

and

Remote

Cavity Tuning

Diagram,

Frequency

Frequency Noise Noise

tables

Instructions.

Part

Transmitter

830B- 1A

Installation

(C848-02-5).

Details

Control

830B-1A

Test

Setup

Response Response Limits

Test

Setup

Test

Setup

Supplied Equipment

Numbers

ing

Checks

250-Watt

Diagram,

(C848- 15- 3) . Panel

Chart

.

Procedures

Meter

(C848-12-X)

250-

(C848-1

Test

(C848-20- 3) (C848-21-3)

Indications

FM

Broadcast

830B-

lA

(B502- 192- 4)

Watt

FM

Broadcast

8-3)

.

Setup

(C848-19-3)

(C847-04-X)

250-

Watt

Transmitter

FM

Broadcast

Transmitter

/

(B502- 187-

(C848-22-5).

Pb)

Page

1-0

2-3

/ 2- 4

2-5

. 2- 6

. 2-9/2-10

4-3/4-4

5- 5

5-6

5- 7 5-8

5-8

Page

1- 1

1- 2 1-2

2-7

5-3/5-4

5-5

.

5-9/5-

10

ii

STEAM POWERED RADIO.COM

general

description

C, Q L !... I

...

S

. - -

--

(

- .

Figure

1-0

1- 1.

Overall

View, 830B-1A 250-Watt FM

Broadcast

Transmitter

STEAM POWERED RADIO.COM

section 1

1.1

PURPOSE

This

instruction ing, operating, Broadcast

1.2

The used phonic the power

1.3

1.3.1

The shown that and

weighs

operating

front

controls

top

front

easily

mitter are bottom to

allow

inside

Large access

vic

ing transmitter that air

filter.

electrical and high-voltage the

panel tuning at

the

Inside

are

at

of

the

one

Transmitter.

PURPOSE

830B-1A

for

FM

range

of

DESCRIPTION

PHYSICAL DESCRIPTION.

830B-1A

in

is

38

of

while

uses

accessible

panel.

doors

to

and

contains a ventilating

panel.

cavity

front

the

250-Watt

continuous

broadcast from

250

watts.

250-Watt figure inches

approximately

controls

the

cabinet.

and

four

of

the

operating

eight

front

of

access

at

the

upper

maintenance.

cabinet

Operating

and

mechanical

These

circuits

is

removed.

is

of

the

transmitter, heavy

bottom

transmitter

side

of

the

OF

INSTRUCTION BOOK.

book

is a guide

and

maintaining

OF

EQUIPMENT.

FM

monophonic

service

88

to

108

OF

EQUIPMENT.

FM

1-1, is

wide,

monitoring

cabinet.

tubes

from

the

to

the

located

transmitter.

cabinet. A harmonic

contained

76

are located

The

the

and

the

front

transmitter

components

upper

part

The lower

is

covered

personnel

interlocks

when

The

in

of

the

cabinet. The

is

mounted on a 19-inch

for

830B-1A

Broadcast

on a single

megahertz

Broadcast

inches high, 27

638

pounds.

behind

filament

meters

tuning

20

transistors,

of

cabinet on

rear

of

the

by a removable

fan

and a permanent-type

are

interlocks

ground

the

doors

power

an

interlocked

iron-core

installing,

250-Watt

Transmitter

or

optional

frequency

with

Transmitter,

in a single

inches

All

the

doors

and

plate on-of

are

located

may

be

controls.

the

transmitter.

is

the

bottom

of

the

cabinet

transmitter

rear

protected

on

the

are

amplifier

compartment

exciter

filter

adjust-

FM

is

stereo-

in

an

output

cabinet

deep,

transmit

The

all

removable

half

rear

transmitter

opened

components

ter

on

the

at

the

observed

trans-

of

which

The

of

the

allow

for

ser-

of

the

panel

by

both

doors

or

plate-

portion

rack

on

that

is

f

connected the

top

Cooling permanent-type by a low-speed, a

shielded individual to

the

1.3.2

The composed

wide-band

to

drive tions in

the

supplied

tion book. descriptions

1.4

Table 830B-1A

1.5

Table able Transmitter. ator

523-0755304).

to

of

the

air

pressure blower

power

ELECTRICAL

830B-1A

of two

exciter

(2) a

covering

transmitter

following

EQUIPMENT

1-2

lists equipment that

250-Watt

ACCESSORY

1-3

lists

for

use

is

contained

TABLE

PUBLICATION

A830-2

FM

B830

Power

10 W

Broadcast

- l

250-Watt

Amplifier

general

the

transmitter

cabinet.

for

the

transmitter

air

filter

at

high-volume

open

ing

in

the

supplies

amplifier

250-Watt

250-watt

the

The

of

the

with

Information

tube.

DESCRIPTION.

FM

electrically-connected

that

furnishes a 10-watt

power exciter are

listed

section V of

unit

instructions

two

transmitter

SUPPLIED.

FM

Broadcast

EQUIPMENT.

accessory

830B-1A

on

in

Unit

Instructions

1-1.

UNIT INSTRUCTIONS

Wide-Band

Exciter

FM

description

output

is

the

rear

fan,

and

top

of

cooling

Broadcast

amplifier.

and

power

in

table

this

units.

is

supplied

Transmitter.

equipment

250-Watt

786M-1

is

suspended

drawn

exhausted thro

contain

523-0755303

through

of

the

cabinet. air

directly

Transmitter

subunits:

FM

Unit

instruc-

amplifier

1-1.

They

system

NUMBER

as

that

FM

Broadcast

Stereo

TD-537

PART

TD-536

TD-538

instru

detailed

is

cabinet

output

part

avail-

Gener-

(CPN

523-0755596

from

a

ugh

An

is

(1) a

used

are

c-

of

1-1

STEAM POWERED RADIO.COM

general

description

TABLE

EQUIPMENT

A830-2 10 W Wide FM

Broadcast

B830-l Power

250-Watt/lKw

1-2.

Exciter

250-Watt

Amplifier

Harmonic

EQUIPMENT

Band

FM

SUPPLIED

PART

522-2714-000

549-2008-000

549-2010-000

Filter

TABLE

786M-l

1-3.

EQUIPMENT

Stereo

Generator

ACCESSORY EQUIPMENT

COLLINS

522-2914-000

1.6 EQUIPMENT SPECIFICATIONS.

1.6.1 MECHANICAL.

Weight:

638

pounds

(approximate)

Size:

38

inches

wide, 76

inches

high, 27

Ventilation:

One

ventilating

Ambient

+10°C (50°F)

Temperature

fan, one

Range:

to

+55°C (131°F)

blower

COLLINS

NUMBER

PART

inches

NO.

deep

Frequency

88

Exact quency

Excitation

to

108 MHz

Range:

operating

of

Source: Crystal-controlled plated, trolling automatic oscillator operating

nontemperature-controlled

an

LC

frequency

is

frequency

crystal-controlled

Carrier-Frequency

Within

over

(55°F) tions

Harmonic

Any from 240 kHz level

Any

from

600

level

Any from least

±1000

ambient

to

+55°C (131°F)

of

±15

and

emission

the

inclusive,

of

the

emission

the

kHz

inclusive

of

the

emission

the

carrier

67 db

percent.

Spurious

carrier

unmodulated

carrier

unmodulated

below

carrier.

Modulation

Wide-band

Standard in

Characteristics:

direct

audio

modulator.

frequency

crystal

in

high-stability

modulation

then

heterodyned

by a second

oscillator.

Stability:

Hz

of

specified

temperature

appearing

by

is

appearing

by

is

appearing

by

the

FM

pre-emphasis

determined

heterodyning

oscillator

control.

carrter

range

and

line-voltage

Radiation:

on a frequency

between

at

least

carrier.

on a frequency

between

at

least

carrier.

on a frequency

more

than

level

of

modulation

oscillator.

oscillator

crystal,

to

The

modulation

up

to

the

high-stability

(

frequency

from

removed

120

kHz

30 db

below

removed

240 kHz

40 db

below

removed

600

kHz

the

unmodulated

is

incorporated

by

fre-

using

con-

provide

station

+10°C

varia-

and

the

and

the

is

at

Ambient

Up

Humidity

to

95

percent

Range:

relative

humidity

Altitude:

Up

to

6000

feet

Shock

and

Vibration:

Normal

1.6.2

Power

200

Maximum

900

Power

250

Output

50

handling

ELECTRICAL

Source:

to

250

volts,

Power

watts

Output:

watts

Impedance:

ohms,

Maximum

unbalanced

swr

and

transportation

.

60-hertz,

single-phase

Requirements:

2:1

1-2

Audio

Input

600

ohms,

Audio

Input

+10

dbm

Audio

Frequency

Complies pre-emphasis

Audio

Frequency

50

to

100 Hz, 1.5

100

7500

FM

Noise

Not

less

(±75 kHz)

AM

Noise

Not

less

cent

AM.

Impedance:

balanced

Level:

±2

db

with

curve.

to

7500 Hz, 1.0

to

15,000 Hz,

Level:

than

6 5 db

Level

(rms):

than

55 db

Response:

standard

Distortion:

percent

below

FCC

75-microsecond

maximum

1.5

percent

100

per

cent

equivalent

maximum

modulation

100

per-

STEAM POWERED RADIO.COM

section 2

installation

2.1 UNPACKING AND INSPECTING.

Be

careful ponents transmitter physical damage. Inspect operation power making each promptly claims

2.2 TRANSMITTER LOCATION. Plan

transmitter starting transmitter the

location cabinet. arrangements best

meets

Allow transmitter.

!

3-1/2 room

2.3

EXTERNAL

Refer following

when

uncrating

to

avoid

damaging

carefully

Check

all

controls,

as

far

as

can

to

the

transmitter.

sure

that

all

connections

other

and

the

chassis.

with

the

transportation

are

to

be

filed,

Before for cation sistor to

adequate clearance both in

feet behind

for ser

to

installation

proper

tab

must

socket

the

transistor

and

installation

of

all

As

will

can

the

station

There

vice

figure

external

placement.

locating

wiring

be

noted,

be

used.

should

the

transmitter

work.

CONNECTIONS. 2-1

connections.

the

for

scratches,

for

loose

such

as

be

determined

Examine

File

retain

Note

check

The

be

pointing

mark

socket

.

placement

work.

Refer

diagram. This

openings

several

Select

requirements.

be a minimum

for

assistance

transmitter

equipment.

dents,

screws

switches,

without

cables

are

tight

any

damage

company.

all

packing

all

transistors

transistor lo-

to

the

placed

adjacent

carefully

to

figure

diagram

in

the

alternate

the

combination

front

and

to

provide

in

and

com-

Inspect

for

and

tran-

transmitter

back

clearance

making

the

or

other

and

bolts.

proper

applying

wiring

clear

claims

If

such

material.

before

2- 1,

the

shows

wiring

that

of

the

sufficient

the

,

of

a.

Connect

the

audio

shielded

terminals 1 and 2 of

phonic

connected

to the the

on RG

output

the connections. Connect transmitter. an Use Connect TB301, l mitter neutral may

either

operation

TB305-4

cabinet

cabinet.

b.

Connect

the

top

- 58U

Before sure present and transmitter transmitter the and

c.

Connect

connector

ct.

Make

front

external

AWG #

cabinet

wire

be

the

signal

twisted

to

TB305-1

and

on

the

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CHANNEL

FREQ

(MHz)

1

88.

88.3

88.5

88.7

88.9

CRYSTAL COLLINS

FREQ (MHz)

74.10000 289-2744-000

74.30000 289-2745-000

74.50000

74.70000

74.90000 289-2748

89. 1 75. 10000

89. 3

89. 5 89

. 7

89.9

75.30000 289-2750-000

75.50000

75.70000 289-2752-000

75.90000

90. 1 76. 10000

90.3

90.5

90.7

90.9

91. 1

91. 3

91. 5

91. 7

91. 9

76.30000

76. 50000

76.70000

76.90000 77

77.30000

77.50000

77.70000

77.90000 289-2763- 000

. 10000

TABLE 2

-1.

CRYSTAL PART NUMBERS

CHANNEL CRYSTAL

PART NUMBER FREQ (MHz)

98.

98. 3

289

-2

746-000

289-2747-000

-000

289-2749-000

98. 5

98. 7

98. 9

99.1

99.3

289-2751-000

99.5

99.7

289-2753-000

289-2754-000 289-2755-000 289-2756-000 289-2757- 000 289-2758-000

289

-2759-000

289-2760-000

289-2761-000

289-2762-000

99.9

100.

100.3

100.5

100.7

100. 9

101. 1

101. 3

101. 5

101. 7

101. 9

COLLINS

FREQ (MHz)

1

84. 10000

84.30000

84. 50000

84.70000

84.90000

85. 10000

85.30000

85.50000

85.70000

85.90000

1

86. 10000

86. 30000

86.50000

86.70000

86.90000

87. 10000

87.30000

87.50000

87.70000

87.90000

PART NUMBER

289-2794-000 289-2795- 000 289-2796-000 289-2797-000 289-2798-000

289-2799- 000 289-2800-000 289-2801-000 289- 2802-000 289-2803-000

289-2804-000 289-2805-000 289-2806-000 289-2807-000 289-2808-000

289-2809-000 289-2810-000 289-2811-000 289-2812- 000 289- 2813-000

92. 1

92.3

92.5 92

. 7

92.9

93.1

93.3

93.5

93.7

93.9

94. 1

94.3

94. 5

94.7

94.9

95. 1

95.3

95. 5

95. 7

95.9

96. 1

96. 3

96. 5

96.7

96. 9

97. 1

97.3

97.5

97. 7

97. 9

78. 10000

78.30000

78.50000

78.70000

78.90000

79. 10000

79. 30000 79

. 50000

79

. 70000

79.90000

80.10000

80.30000

80.50000

80.70000

80.90000

81. 10000

81. 30000

81. 50000

81. 70000

81. 90000

82.10000

82.30000

82.50000

82.70000

82.90000

83.10000

83.30000

83.50000

83.70000

83.900

00

289-2764-000 289

- 2765-000 289-2766-000 289-2767-000 289-2768-000

289-2769-000 289

-2770-000 289-2771-000 289-2772- 000 289-2773- 000

289-2774-000 289-2775-000 289-2776-000 289-2777-000 289- 2778-000

289-2779-000 289-2780-000

289-2781-000 289-2782-000 289-2783-000

289-2784-000 289-2785-000 289- 2786-000 290-2787-000 289-2788-000

289-2789-000 289-2790-000 289-2791-000

289-2792-000

-2

793-000

289

88

102. 1

102. 3

102.5

102. 7

102.9

. 10000

88.30000

88.50000

88.70000

88.90000

103. 1 89. 10000

103.3

103.5

103.7

103.9

104.1

104.3

104. 5

104.7

104.9

105. 1

105.3

105.5

105.7

105.9

106. 1

106.3

106.5

106.7

106.9

107. 1

107.3

107. 5 107,7

107.9

89.30000

89.50000

89.70000

89. 90000

90. 10000

90.30000

90.50000

90.70000

90.90000

91. 10000

91. 30000

91. 50000

91. 70000

91. 90000

92. 10000

92.30000

92.50000

92.70000

92.90000

93.10000

93.30000

93.50000

93.70000

93.90000

289-2814-000 289-2915-000 289-2816-000 289-2817-000 289-2818-000

289-2819-000 289-2820-000 289-2821-000 289-2822-000 289-2823- 000

289-2824- 000 289

-2825-000

289

-2826

-00 289-2827-000 289

-2828-000

289-2829 289-2830

-000

-00 289-2831-000 289-2832-000 289-2833-000

289-2834- 000 289-2835-000 289-2836-000 289-2837-000 289

- 2838- 000

289-2839-000 289-2840-000 289-2841-000 289-2842- 000

289-2843-000

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3-1/3-2

STEAM POWERED RADIO.COM

section

4

4.1

GENERAL.

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AM

BROADCAST

Noise

900C

MONITOR

Test

Setup

STEAM POWERED RADIO.COM

maintenanc

e

CONTROL

S101

Sl0l

S101

Sl0l

S101

Sl0l

MULTIMETER

TABLE 5-3.

BUFFER

MIXER

V428

V429

V430

V430C

MOD

AFC

14

MC

SCREEN

NORMAL

POSITION

GRID

B

OUTPUT

KEY

B

REF

B

FS

400

FS

40

TRANSMITTER

A

B

VDC

MA

METER

Ml0l

MlOl

Ml0l

MlOl

Ml0l

MlOl

MULTIMETER

INDICATIONS

METER

INDICATION

~ -

MULTIMETER

~

----

GRID

FS

40

-----

MA

MULTIMETER

P.A.

PLATE

VOLTAGE

P.A.

PLATE

CURRENT

-----------

-

-----

----

-------

R.F. WATTMETER

5-9

/ 5-

10

Collins 830B-1A Instruction Book

Specifications and Main Features

Frequently Asked Questions

User Manual