Heathkit Q MULTIPLIER Manuel utilisateur

P I

......

r3:E.A.Tr3:K

I T

MUL

TIPLIE

MODEL

GD-125

·,

TYPICAL

COMPONENT

TYP

This

chart

a guide to

commonly

used

types

elec-

tions

should

prove

helpful

identifying

most

parts

and

onic c

omponents.

The

symbols

and

illustra-

reading

the

schematic

diagrams.

RESISTOR

CAPAC

ITOR

AJt,

...

-wwv-

--1

t--

POTENTIOME

~ER

(CONTROL)

;.--

---wvvr-

ELECTROLYT

IC m

CAPACITOR

--±1t=-

.'.

- - S U PP RE SS OR @

- - SCR EEN

- - GR ID

TUBE

CATH

OD E •

:.----

flLAM

CO L L ECTOR

SISTOR

c-:

BASE EM ITT ER

OLLE

NPN

ITTE

R •

NEON

BULB

FUSE

...

ILLUMINAT

(5;9NG

BULB

,I,' /

I,'

--------

SPST

SWITCH

(TOGGLE)

..-.r-

...-'

....

DPDT

-B-METER

. ....• .

(DIODE)

..-

CONDUCTORS

+-r

------

CONNECTED

SHIELDED

CONNECTED

PHONE

JACK

EARTH

GROUND

PHO

o-JACK

() ,

~'CROPHO

CHASSIS

GROUND

VARIABLE

CAPACITOR

---1t-

riI\

RECEPTACL

" "..

\!!T

LOOP

INDING

POST

TRANSFORMER

(

DJ US

POWDERED IRON

CORE) ARROW

tINDICATES DIR-

ECTION OF CORE

MOVE

MENT TO

INCREASE

IND

UCT

C E

INDUCTOR

(COIL)

C POWER

[

T RANS-

FORMER

G-

ANTENNA

GENERAL

]

][

TRANSFORMER

(

ADJUSTABLE

CORE)

I I

PIEZOELECTR

~D~

CRYSTAL

Assembly

Operation

the

®#k~

MULTIPL

IER

MOD

E L 6 0 - 1 2 5

H EA T H

COM

PANY,

N T O N H A R B O R ,

C H IG A N

TABLE

OF CONTENTS

tro

duction. • • • • • • • • • • • • • • • • • • 2

r ts List. • • • • • •

••

•••

• • • • • • • • 3

Step-

By-S

tep

mbl

Chas s is Asse

mbly.

• • • • • • • • • • • 4

Func

Switc

Wiri

ng. • • • • • • • • 6

Insta

on. • • • • • • • • • • • • • • • • • • • 12

Alignment

. • • • • • • • • • • • • • • • • • • • • 13

Oper ation. • • • • • • • • • • • • • • • • • • • • 15

In Cas e Of

Dif

fic

ulty.

• • • • • • • • • • • • • 16

Specificatio

ns. • • • • • • • • • • • • • • • • • 16

Cir cu

Desc

r iption. • • • • • • • • • • •

••

Sche

tic

•••••

(fo

out

fro

pag

e). • • • 19

Ccpyri ghl " r965

Heath Compa ny

l ".(I.IJ .ru.tr,( 12

-17-65

Page

---

--------------'-

INTRODUCTION

The

Heathkit

Model

GD-125

Multiplier

used

with

communications

receivers

provide

addi-

tional

selectivity

and

signal

rejection.

Because

its

peak

null

effect

can

tuned

across

the

receiver

bandpass

the

operation

the

Multiplier

flexible

than

that

of a

fixed

frequency

filter.

The

Multiplier

may

also

used

with

re-

ceiver

which

already

has

filter,

obtain

two

simultaneous

functions.

For

example,

the

filter

could

set

peak

the

desired

signal

and

the

Multiplier

used

null

adjacent

signal.

When

properly

connected

and

adjusted,

the

Multiplier

will

not

decrease

receiver

sensitivity.

the

peak

function

, an

audible

gain

will

noted

on CW

signals,

and

carrier

gain

will

noted

the

meter

for

phone

signals.

However,

the

audio

will

att

enuated

slightly

due

narrowing

the

received

sidebands.

The

reduced

sideband

reception

will

tend

attenuate

the

higher

audio

frequencies.

This

than

compensated

for

the

increased

readability

against

the

surrounding

QRM.

NOTE:

Refer

the

"Kit

Builders

Guide"

for

complete

information

unpacking

parts

identi-

fication,

tools,

wiring,

soldering,

and

step-by-

step

assembly

procedures.

Page

----------------

PARTS

LIST

The

numbers

parentheses

are

keyed

the

numbers

the

Parts

Pictorial

(fold-out

from

Page

3).

The

instructions

the

Kit

Builders

Guide

show

you how to

identify

resistors

and

capacitors.

PART

PAR

DESCRIPTION

PART

PARTS

DESCRIPTION

No.

Per

Kit

PerKit

RESISTORS

Hardware

(cont'd.]

(15)252-15

4-40

nut

att

(16)

252-3

6-32

nut

(1)

1-9

1 1000 n

(brown-black-red)

/ (17)

252-7

Control

nut

11 1 1500 n

(brown-green-red)

I (18)

252-9

Push-on

speednut

1-13

2 2700 n

(red-violet-red)

,V (19)

253-10

Control

flat

washer

1-1

9 1 5600 n

(gre

en-blue-red)

Jj (20)

254-9

6 #4

lockwasher

1- 23 1 27

(re

d-violet-orange)

(21)

254-1

7 #6

lockwasher

1-2

5 1

47 Kn

(yellow-violet-orange)

/(22)

259-1

1 #6

solder

lug

1- 26 1 100 Kn

(brown-black-yellow)

.J(23)

254-4

Control

lockwasher

1-2

9 1 220

(red-red-yellow)

J (24)

259-10

Control

solder

lug

37 2

2.2

megohm

(red-red-green)

J 25)

259-11

Spade

lug

WIRE

-SL

EVI

1 Watt

89-1

Line

cord

/ /

(2) l A-7 1 47

(yellow-viOlet-orange)

343-2

Coaxial

cable

344-59

1 Hookup

wire

346-1

Sleeving

MISCELLANEOUS

CAPACITORS 510 JlJlf

mica

J (26)57

-27

icon

diod

, 750

rna,

(3)

20-42

20-53

.0011

ufd

mica

(1100

Jluf)

/ 5?0

PIV

. .

20-54

1 0033

ufd

mic

330 fJ.Jlf) / (27)

75-24

Lme

cord

stram

relIef

:005

ufd

disc

/ (28)

205-254

Alignment

tool

blade

(4)21-27

(5)

25-80

20-20

Jlfd

electrolytic

261-4

Rubber

feet

)

(6)26-28

1 100 u uf

variable

• J

411-26

1 12AX7

tube

' v (29)

412-13

1 Neon

lamp

(30)

431-51

2-lug

terminal

strip

v'/

(31)

431-55

6-lug

terminal

strip

(32)

434-42

Phon

socket

(33)

434-56

9-pin

tube

socket

CONTROLS-S

ITCH-

TRANSFORMER-

OILS

(34)

438-4

Phono

plug

/ /

(7)

10-7

2 5000 n

control

462-140

1 Knob

(large)

(8) 63-288 1 4

-position

rotar

swit

462-159

3 Knob

(small)

54-2 1

Power

transformer

(35)

100-M357

Pointer

assembly

(9)40

-67

1.5

3.0

coil

90-M331F

Cabinet

top

shell

(10)

40-68

120-150

coil

../

90-M330P262

Cabinet

base

200-M453

Chassis

HARDWARE

490-5

1 Nut

starter

(11)

250-52

4-40

X 1

/4"

screw

331-6

Sold

(12)

250-89

6-32

3/8"

screw

597-308

1 Kit

Builders

Guide

(13) 250

-155

4 #6

she

metal

screw

595-775

Manual

(14)

250-15

8-32

sets

crew

Identification

label

PARTS

PICTORIAL

®®®

==€I:.l»=

-4I:IID=

~~~~

®® ®

@ @

® ®@

Q) g

r @

® 0

'j:)

';.:

..,

)

o o o

CTORIAL 5

-------------------

Page

STEP-BY-STEP

ASSEMBLY

Before

startin

g to

assemble

this

kit,

read

the

Kit

Builders

Guide

for

complete

information

wiring

soldering

and

Step-By-Step

Assembly

procedures.

CHASSIS

ASSEMBLY

Refer

Pictorial

for

the

following

steps.

( J

Locate

the

chassis

and

position

shown.

(

.I)

Refer

Detail

and

mount

the

9-pin

tube

socket

with

4-40

1/4"

screws,

lockwashers,

and

4-40

nuts.

Position

the

blank

space

shown

the

arrow

Pictorial

® 4- 40

NUT

@ @ # 4

CKWASHER

@ 1,

, J J

PICTORIAL

4-40xl/4"

SCREW

Detail lA

Locate

the

100

{L{Lf

variable

capacitor

and

clip

off lug 2

shown in

Detail

lB.

(

Refer

Detail

and

mount

the

100

{L{Lf

variable

capacitor

C with

four

4-40

x 1

/4"

screws

and

lockwasher

6'lJ(~....,11l,.-CUT

OFF

LUG

V A R I A B L E

CAP

A C I TO R

Detail 1B

Page

~---------------

120-150

COl

(# 40 - 6 81

Detail lC

(

Refer

to Detail

and

mount

the

120-150

fJ.h

coil

(#40-68)

A. Place

the

locating

tab

the

coil

mounting

clip

into

the

slot

the

mounting

hole.

Mount

the

1.5-

3.0

coil

(#40-67)

fer

Pictorial

for

the

following

steps.

Connect

a .0011

ufd

(1100 fJ.fJ.f)

mica

ca-

pacitor

from

lug

1 of

coil

A (N8) to

ground

lug

B on

tube

socket

VI (N8).

Connect

.005

disc

capacitor

from

lug

1 of

coil

(8-1)

ground

lug

C on

tube

socket

VI (N8).

(

)

Connect

a 1500 n

(brown-green-red)

re-

sistor

from

lug

(8-1)

ground

lugC

(N8)

tube

socket

VI.

(V{

Connect

2.2

megohm

(red-re

-green)

re-

sistor

from

lug

2 (N8)

ground

lug C (8-3)

tube

socket

VI.

(,,/)

Connect

.005

fJ.fd

from

lug

2 of

coil

(N8) to lug 1 of

tube

socket

VI (N8).

Place

a 1-1/ 4"

length

sleeving

over

one

lead

of a .005

fJ.fd

capac

itor

Connect

this

lead

lug

2 of coil D (N8).

Leave

the

other

lead

free.

will

be connected

later.

Connect

1-1

/2"

wire

from

lug

6 of

tube

socket

(8-1)

lug

1 of

variable

ca-

pacitor

C (N8).

1500

2.2

MEG

IAL

(V )

Connect

1-1

/2"

wire

from

lug

1 of

var-

iable

capacitor

C (8-2)

lug 1 of

coil

(8-2).

)

Connect

one

end

of a

2-1

/4"

wire

lug

coil

(8-1).

Leave

the

other

end

free.

will

connected

later.

NOTE:

Where

wire

passes

through

connection

and

then

goes

another

point,

the

step,

will

count

two

wires

the

solder

instruc-

tion

(8-2),

one

entering

and

one

leaving

the

con-

nection.

Place

one

lead

of a

2.2

megohm

(re

red-

green)

resistor

through

ground

lug

(8-2),

through

lug 9

(8-2),

the

center

post

(8-1)

tube

socket

VI.

Connect

the

other

lead

lug

7 of VI (N8).

( )

Set

the

chassis

aside

temporarily.

Pag

____

e 6 ___

_____

----1

3 "

PHYSI

CAL

POSITION

THESE

LUG

/4"

Y A

PPEAR

DIFFERENT.

THEIR

PLA

CEMENT

PENDS

UPON

THE

MANUFACTURER

USE

FULL

SISTOR

LEAD

LENGTH

PICTORIAL 3

FUNCTION SWITCH WIRI G

Refer

to P

ictorial

for

the

foll

owing

steps.

( )

Position

the

4-position

rotary

switch

shown

Picto

ial

(

Connect

a 27

(red-violet-oran

ge)

re-

sistor

between

8 (8-1)

and

10 (N8) of

the

switch.

(

Connect

one

end

of a

wire

lug

10 of

the

switch

(8-2).

Leave

the

other

end

free.

will

connecte

later

Connect

WIre etween

lugs

11 (N8) and

7 (N8) of

the

switch.

Refer

Detail

and

prepare

a 220

(red-red-yellow)

resistor

and

.005

[.dd

disc

capacitor

combination.

not

cut

eit

resist

lead.

The

soldered

capacit

lead

should

cut

off

even

with

the

solder

connection,

J!ll

====

faJJi

~~~~

SO L D E R

Det

ail

(j -Connect

the

lead

extending

from

the

pr e

pared

end

the

combination

lug

9 of the

witch

-1).

Leave

the

other

leads

free.

ey wi

ecte

d later .

(

-0

Connect

a 1-1/ 4" wir e

tween

lugs

6 (8-1)

and

4 (N8) of

the

swit

ch.

(0 Conne

one

end

of a

3/ 4"

wire

to lug 4

of t

switch

(8-

2).

Leave

the

othe

r end

ee.

ill

connected

ter .

(

.;)

Conne

one

end

of a 3" wir e

g 5 of

ch (8-1).

Leave

e other end

ee.

will

connected

late

r .

Refer

Picto

ial

for

the

llowing

steps.

(

Refer

Detail

4A an d

install

the

Functio

itc

E on the

chassis

with

contro

ckwashe r

and

control

nut.

Position

the

lugs

as shown in Pictor ial 4.

ghten

the

nut

only

eno

ugh

hold

the

switch

in pla

The

nut

will have

removed

late

r .

Detail 4A

(

\.)

Connect

the

free

end

the

wire

extending

from

lug

10 of

switch

lug

2 of

coil

(8-3)

•

Connect

a 510

fJ.

fJ.f

mica

capacitor

from

lug

11 of

switch

E (N8)

lug 7 of

tube

socket

(8-2).

(\.1

Connect

the

free

end

the

wire

extending

from

lug 2 of

coil

g 7 of

switch

(N8).

Ce manuel convient aux modèles suivants

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