Heathkit SB-1000 Manuel utilisateur

()

Heathkit®

Manual

for

the

LINEAR

AMPLIFIER

Mode!

SB-1000

595-3795-01

Please

perform

the

following

steps

and

assemble

your

3-ring

binder

before

you

assemble

your

kit.

not

unpack

your

kit

until

you

are

instructed

so.

Refer

Figure

locate

the

envelope

marked

“Binder

Hdw",

and

remove

the

hardware.

Position

the

binder

cover

with

the

large

hole

shown.

Determine

which

side

the

rings

unhook.

Then

position

the

ring

assembly

shown

and

mount

the

cover

with

the

binder

hardware:

two

3/8"

nylon

screws,

two

flat

washers,

and

two

6-32

nuts

shown.

not

overtighten

the

hardware.

Ifit

has

not

already

been

done,

carefully

remove

the

Manual

and

its

Illustration

Booklet,

Sche-

matic,

etc.

from

its

wrapping.

Unfasten

the

rings

(if

they

are

fastened)

and

place

the

Manual

the

binder.

Set

the

Illustra-

tion

Booklet

and any

other

Manual

portions

aside.

HEATH

COMPANY

BENTON

HARBOR,

MICHIGAN

49022

()

Refasten

the

rings.

Discard

this

page

and

proceed

with

your

Man-

ual.

NOTE:

Install

the

Mustration

Booklet

and

any

other

Manual

portions

the

back

the

binder

after

you

assemble

your

kit.

Figure

1987

Heath

Company

All

Rights

Reserved

Printed

the

United States

America

LINEAR

AMPLIFIER

Model

SB-1000

595-3795-01

WARNING:

not

expose

this

Amplifier

raln

moisture.

Never

operate

the

unit

liquid

has

accl-

dentally

spilled

Into

tt.

this

should

happen,

have

the

unit

checked

qualified

service

technician

betore

you

use

again.

Otherwise,

fire

electrical

shock

could

result.

1987

Heath

Company

HEATH

COMPANY

All

Rights

Rasarved

BENTON

HARBOR,

MICHIGAN

49022

Printed

the

United

States

America

—_

Heathkit

"Federal

Communications

Commission

requirements

prescribe

type

acceptance

linear

powcr

amplificrs

operating

below

144

MHz

Part

the

Rules

and

Regulations.

This

Linear

Amplifier

will

meet

these

requirements

when

constructed

strict

accordance

with

the

instructions

this

manual,

using

only

components

and

materials

supplied

with

the

kit

the

exact

equivalent

thereof.

You

will

instructed

sign,

date,

place

your

amateur

call

sign,

class

license,

expiration

date

license

the

included

label

and

affix

the

label

the

Linear

Amplifier

certifying

that

you

have

constructed

this

Linear

Amplificr

accordance

with

the

above

mentioned

instructions.

order

mect

legal

requirements,

certain

the

instructions

exactly

they

are

stated

this

Manual.”

CAUTION

Use

extreme

care

during

initial

testing

and

all

subsequent

operation

this

Linear

Amplifier,

While

the

Amplifier

designed

for

maximum

safety,

never

lose

respect

for

the

high

voltage

present

this

unit.

Protect

yourself

always

against

Icthal

severe

electric

shock.

HEATH

COMPANY

Heathkit

Page

Table

Contents

INTRODUCTION

—-

CHASSIS

Parts

List

-—_______.

SPECIFICATIONS

Step-By-Step

Assembly

36.

UNPACKING

INSTRUCTIONS

INITIAL

TESTS

AND

ALIGNMENT

Initial

Tests

}§$—__—~__

ASSEMBLY

NOTES

Alignment

—_s

-——

RECTIFIER

CIRCUIT

BOARD

FINAL

ASSEMBLY

—-—.

————

Parts

List

Step-by-Step

Assembly

INSTALLATION

§=—-~--.-

FILTER

CIRCUIT

BOARD

OPERATION

——

Parts

List|

——-—————__-_.-

......

—

Reading

the

Meters

————_________...

Step-by-Step

Assembly

General

Information

———__________....._

Tune-ap

——£_$_—_—___—_

ALC/POWER

CIRCUIT

BOARD

Periodic

Maintenance

———————-—--.-

Parts

List

Step-by-Step

Assembly

CASE

DIFFICULTY

§———————.._

Troubleshooting

Chart

-——

METER

CIRCUIT

BOARD

Parts

List

CIRCUIT

DESCRIPTION

=——_—___--_

Step-by-Step

Assembly

CIRCUIT

BOARD

X-RAY

VIEWS

set

INPUT

FILTER

(illustration

Booklet,

Page

67)

Parts

List

Step-by-Step

Assembly

SEMICONDUCTOR

IDENTIFICATION

SCHEMATIC

Mlustration

Booklet,

Page

70)

WARRANTY

Inside

front

cover

CUSTOMER

SERVICE

-—-

Inside

rear

cover

Page

INTRODUCTION

The

Heathkit

Model

SB-1000

Linear

Amplifier

completely

self-contained,

grounded

grid,

linear

amplifier.

designed

operate

1000

watts

PEP

output

SSB

850

watts

output

CW.

The

Amplifier

designed

used

with

exciters

which

deliver

100

watts

output.

can

used

with

less

driving

power,

but

will

have

lower

output.

broad-band,

tuned-input

circuit

for

each

band

feeds

the

3-500Z

triode

tube

that

connected

grounded-grid

configuration.

Heathkit

ALC

circuit

developes

negative

voltage

that

can

fed

back

the

exciter

reduce

its

gain

when

the

Amplifier

overdriven.

The

antenna

change-over

relay

normally

actuated

relay

contacts,

electronic

switch,

the

exciter

place

the

Amplifier

the

transmit

mode.

NOTE:

The

contacts

switch

must

connected

ground.

Operational

problems

may

occur

the

contacts

have

than

zero

volts

DC.

The

Amplifier

may

operated

from

cither

120

VAC

240

VAC,

50/60

power

sources.

Operation

from

240-volt

line

recommended.

Each

side

the

line

cord

equipped

with

fuse

protect

against

overloads,

Heathkit

Page

SPECIFICATIONS

Band

Coverage

160,

80,

40,

and

meter

amateur

bands

(also

operable

MARS

and

WARC

bands,

where

applicable).

Driving

Power

Required

———__________________

100

watts,

maximum

(85

watts,

typical).

Maximum

Power

Output

SSB:1000

watts

P.E.P.

CW:

850

watts.

Duty

Cycle

SSB:

Continuous

voice

modulation.

CW:

50%.

minutes

continuous

carrier

500

watts.

ALC

0—20

volts,

adjustable,

negative-going.

Third

Order

Distortion

-30

better.

Keying

seco

Requires

contact

closure

sink

+12

volts

100

mA.

Input

Impedance

unbalanced.

Output

Impedance

—

50.

unbalanced;

SWR

2:1

less.

Front

Panel

Multimeter

(high

voltage,

plate

current,

power

output,

and

ALC).

Grid

current

meter.

Multimeter

function

switch.

Transmit

indicator.

PWR/OFF

switch.

OPR/STBY

switch.

Plate.

Load.

Band

switch.

Page

Rear

Panel

Heathkit

Output

(60-239).

Tube

—.

Power

Required

Dimensions

(overall)

Net

Weight

-—

Input

(SO-239).

RELAY

(phono).

ALC

Out

(phono).

ALC

ADJ

control.

+12

VDC

(phono).

Ground

post.

Line

cord.

Fuses

(two

15-ampere

for

120

VAC

two

10-ampere

for

240

VAC).

One

35002.

----—.-——

120VAC,

50/60

Hz,

15-amperes

maximum.

240

VAC,

50/60

Hz,

7-1/2-amperes

maximum.

8-1/4"

14-1/2"

15-1/2"

(21

36.8

35.2.

cm).

—

lbs.

(21.8kg).

The

Heath

Company

reserves

the

right

discon-

tinue

products

and

change

specifications

any

time

without

incurring

any

obligation

incorporate

new

features

products

previously

sold.

Heathkit

Page

UNPACKING

INSTRUCTIONS

not

unpack

any

part

your

kit

until

step

directs

you

so.

Locate

the

"Pack

Index

Sheet”

that

packed

inside

the

main

shipping

carton

for

your

Linear

Amplifier.

Note

that

the

shipping

carton

divided

into

six

smaller

sections.

These

sections

make

Packs

through

5--

and

the

Final

Pack,

which

may

made

several

bags,

envelopes,

small

boxes,

and

loose

parts.

not

unpack

any

these

parts

until

step

specifically

directs

you

so.

When

you

check

parts

against

"Parts

List,”

return

any

part

group

parts

packaged

bag

other

container,

with

part

number

it,

its

container

after

you

identify

it.

Leave

these

parts

there

until

you

actually

use

them

step.

This

will

help

prevent

you

from

mixing

the

parts,

and

help

you

identify

the

parts

when

you

need

them.

Some

parts,

however,

are

bag

envelope

that

not

marked

with

actual

part

number,

but

with

packaging

number

that

begins

with

the

number

"173-.".

These

numbers

are

used

for

packaging

purposes

only

and

not

appear

the

Manual

parts

lists.

Open

each

bag

envelope

that

marked

with

only

"173-"

packaging

number

identify

the

parts

contains.

NOTE:

Never

use

"173-"

packaging

number

you

must

order

replacement

part.

Use

only

the

part

numbers

listed

Manual

parts

list

for

this

purpose.

Save

all

the

packaging

material

until

you

account

for

all

the

parts.

Page

ASSEMBLY

NOTES

TOOLS

You

will

need

these

tools

assemble

your

kit.

LAA

Heathkit

PLIERS

LONG-NOSED

DIAGONAL

PHILLIPS:

08"

1/4"

BLADE

PLIERS

CUTTERS

STRIPPERS

SCREWDRIVER

SCREWDRIVERS

procccccr

rrr

DESOLDERING

NUT

STARTER

BAB

«may

suppiieo

WITH

KIT)

DESOLDERING

Bnaibe

PENCIL

OTHER

HELPFUL

SOLDERING

IRON

TOOLS

£5:

fauna

Glial

eas

Gleaner

(221025

WATTS)

Lene

ASSEMBLY

the

instructions

carefully.

Read

the

Most

kits

use

separate

“Illustration

Booklet"

entire

step

before

you

perform

each

operation.

that

contains

illustrations

(Pictorials,

Details,

etc.)

that

are

too

large

for

the

Assembly

The

illustrations

the

Manual

are

called

Manual.

Keep

the

"Illustration

Booklet"

with

Pictorials

and

Details.

Pictorials

show

the

overall

operation

for

group

assembly

steps;

Details

generally

illustrate

single

step.

When

you

are

directed

refer

certain

Pictorial

"for

the

following

steps,”

continue

use

that

Pictorial

until

you

are

referred

another

Pictorial

for

another

group

steps.

the

Assembly

Manual.

The

illustrations

are

arranged

Pictorial

number

sequence.

Position

all

parts

shown

the

Pictorials.

Solder

instructions

are

generally

given

only

the

end

series

similar

steps.

You

may

solder

often

you

desire.

Heathkit

Each

circuit

part

electronic

kit

has

its

own

component

number

(R2,

C2,

etc.).

Use

these

numbers

when

you

want

identify

the

same

part

the

various

sections

the

Manual.

These

numbers,

which

are

especially

useful

part

has

replaced,

appear:

—In

the

Parts

List,

—At

the

beginning

each

step

where

compo-

nent

installed,

—Insome

illustrations,

—In

the

Schematic,

—In

the

section

the

rear

the

Manual.

When

you

are

instructed

cut

something

particular

length,

use

the

scales

(rulers)

provided

the

bottom

the

Manual

pages.

SAFETY

WARNING:

Avoid

eye

injury

when

you

cut

off

excessive

lead

lengths.

Hold

the

leads

they

cannot

fly

toward

your

eyes.

Page

SOLDERING

Soldering

one

the

most

important

operations

you

will

perform

while

assembling

your

kit.

good

solder

connection

will

form

electrical

connection

between

two

parts,

such

component

lead

and

circuit

board

foil.

bad

solder

connection

could

prevent

otherwise

well-assembled

kit

from

operating

properly.

easy

make

good

solder

connection

you

few

simple

rules:

Use

the

proper

type

soldering

iron.

22-

25-watt

pencil

soldering

iron

with

1/8"

3/16"

chisel

pryamid

top

works

best.

Keep

the

soldering

iron

tip

clean.

Wipe

often

wet

sponge

cloth;

then

apply

solder

the

tip

give

the

entire

tip

wet

look.

This

process

called

“tinning,"

and

will

protect

the

tip

and

enable

you

make

good

connections.

When

the

solder

tends

"ball"

does

not

stick

the

tip,

the

tip

needs

cleaned

and

retinned.

NOTE:

Always

use

rosin

core,

radio-type

solder

(60:40

tin-lead

content)

for

all

the

soldering

this

kit.

This

the

type

have

supplied

with

the

parts.

The

Warranty

will

void

and

will

not

service

any

kit

which

acid

core

solder

paste

flux

has

been

used.

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