Hallicrafters S-40 User Manual

j

instqllqtion

qnd

-J

.:;:.::,:,-j

.-

=

.-

operdfing

for

model

rqdio

f

eGefve

f

-

insfrucfions

5-4ol

tflAY,

Jh^s..,hn.l

i,q

I

1946

rs

I"tH,{.l

94-1454

EO.

t6, U. s. A.

60

I

I
:

l

I
i

-l

.

\l

i

i

i
I

I

I

I

r

I

Recerver Modiil S-40, front

Rodio

view,

J

INSTALTATION

AND

INSTRUCTIONS

FOR

RADIO

RECEIVER MODEL

OPERATING

S.4O

GENERAL.-YouI receiver is
pable
fiequency

(megacycles). A
indicated
as
venient
tuning dial scale
radio
of
reception such as automatic
the optional
code
enthusiast.

The
quires
prong plug which is attached
On
power such as a 6-volt storage battery

Another socket
ternal

receiving

of

ranges

on the attractively illuminated

foreign

which

the

station

reference

stations. A band spread

is

signals

receiver is designed to operate from a 105 to

watts of

75

rear

"S"

tuning

standard

continuous

with

bandswitch is provided for selecting the four ranges

locations

radio

for

is

also located a logging scale which

described later

use

of the

a headset. A beat

of

intelligible, this feature being especially

power for

receiver chassis

is

provided on

meter which

a table

broadcast

are also clearly
amateurs

dial is provided

in

these

noise limiter and volume control.

operation.

to

is available upon

model,

and foreign

coverage

(hams)

instructions.

frequency

six foot line cord extending

the

is

provided
and

the rear of the

nine tube superheterodyne radio

domestic short wave stations over

or

provided from

main

tuning dial scale. The

indicated

and also the short wave listener. On

for fine

Connection

"8"

on the

is used as a reference when

tuning of short wave stations,

Special

oscillator

125-volt, a-c,

a socket for

batteries

receiver chassis

request from a Hallicrafter distributor.

features are provided to

(b.f.o) is

useful to the

to the power source

or vibrapack.

kc (kilocycles) to 43

54O

of

amateur

main

tuning dial

Provision is made for

provided for

radio

6O cycle source

5Of

from the rear of

connecting to a d-c source of

for

the

receiver ca-

reception which

bands

scale as a con-

amateur

is made by the two

connection of

as well

the

logging

the

improve

rendering

and code

and

the cabinet.

an ex-

four

mc
are

main

use

re-

The complete

receiver

is 9 inches high by

28 pounds.

maximum output of

The

distortion.

MECHANICAL

ventilated

well
mechanical strength.
provides
ments. Mixer and oscillator
the
near
for
control

ELECTRICAL

receiver circuits
up at
is selected by

a means of gaining

holes provided

the front of the cabinet

tuning and operating

markings are

the anrenna

DESCRIPTION.-The

aerodized sheet

DESCRIPTION.-The block

in a simple

and fed to the

a resonant

the

The full length aerodized

for

this

in red. This

circuit and

18[

receiver at

metal

access to all of

adjustments

purpose

provide access to the

are located on the

manner which

antenna coil of

the

model S-40

cabinet

may

under the

is

aid the

to

fed to the

is described

inches

spqaker

minimize electrical

to

top

the tubes,

made

be

notice card.

front of

novice

diagram,

the

mixer-oscillator

wide by

is one watt with

radio receiver

cover,

Jiz.l lamps and

from the

Three small

oscillator

receiver. Notice that some

the

in

operating

Figure

follows: radio signals

as

r-f

stage

11 inches deep

less than ten

is

housed

interference and

mounted

bottom

padder

2, iilustrates the

where the

on

i-f transformer

of the cabinet

holes

adjustments.

receiver.

the

desired station

tube.

in

an

a piano

on

All controls

function of the

and weighs

Percent

attractive,

provide

type hinge,

adjust-

through

the bottom

of the

picked

are

signal

V

Figure l.

At

the same time
which
of
stages
component
fier tube and then capacity
and fed to the speaker.

Thb a-v-c circuit
voice (phone) broadcasts.

The
provides ant-f. signal
the
be
cycles.

The automatic
other
trolled

is mixed

kc (kilocycles) is

455

to the detector-first

of the

frequency oscillator

beat

i-f

signal,

varied

diode being

means

by

in the event that

Rodio Receiver Model *4O,

the

oscillator

with the selected

selected by

i-f

signal

coupled to the audio

is a conventional one

at455

thereby

noise limiter

rendering code signals

the C\(-PITCH

of

used as

an electronic

any one or

block

mixer-oscillator tube generates

section of

incoming station signal.

audio

is amplified by the

It

amplifier

is in

use with

stage operates

kc (kilocycles) which

circuit

the

first i-f

the

stage

which

the

in

control

employs one

bleeder

all of these

diogrom

transformer

where

triode section

power output

provides stability

AM/C\/ switch

the CV

is fed to the

intelligible. The

which

diode of

(gas-gate)

tubes

showing

An intermediate

and fed through

it is then

of the
tube where

position

permits

a duo-diode
for the tubes which

should become

receiver circuils.

a local r-f signal

frequency signal

two i-f amplifier

demodulated.

detector-first audio

is

it

further

listening to

when

position.

AM

at the

AM/C\/ switch

the

of

detector stage

pitch of the

a variation

gassy.

to beat

code signal

from 0 to

type tube

The

amplified

music or

against

(6H6)' the

a-v-c con-

are

audio

ampli-

and

can

1'000

-sF

V

power

A

circuits

rectifier

when

stage

the r'eceiver

INSTALTATION

As soon as the

L.
might have occurred
the transportation

damages
dealer.
possible

Z.
structions.

are apparent

Ifpurchased

defects,

Eill our and

receiver

BEFORE

immediately

provides a well

is operated

has

in

shipment.

company.

the

after

"unpacked"

ACCEPTANCE.

mail the

filtered

from an a-c

OF

unpacked,

been

If any

purchased

If

receiver has been

over

damages are

packed

the counter, examind

record

high voltage to

source

return card which

of

source.

THE

examine

found,

"oyer

unpacked,

RECEIVER

it for any apParent

a claim

file

the counter"

return

carefully

plate and

the

damage wb.ich

IMMEDIATELY

any

and

it IMMEDIATELY

and thoroughly

is enclosed with

screen

with

defects or

to the

for any

in'

these

a

\J,

,J

This

I

3.

piece

receiver

of

furniture.

is

equipped

Do

not mount

with rubber

this radio

mounting

on a radiator

feet for mounting

or any

area subject

on a table

to heat

or other

hu-

or

midity.

4.

An

external
On the rear
A2 and
directed.

An
help
external

G. Select one

external

to improve

ground, always

antenna

apron

ground connection

reception

should

receiver

of the

of the antenna

especially

connect

be connected

chassis is

systems

is

not

on the higher

it

to the terminal marked

to the receiver

located

described

essential to

as follows:

the antenna

below and

receiver,

this

frequencies.

"G"

connector

connect it

in

but

If it is

on the

antenna

strip,

marked

to

the strip as

some locations

desired

to use

terminal

A1,

will

an

strip.

\J

A. Single

jumper
75

results.
of antenna
installation

of antenna is recommended

the receiving
where
quired

I

range
wires should
nals ,{,1
with
used, connect
to terminal
to terminal
between

(t) To determine
of the doublet antenna in

to

between the

feet

(including
Erect

B. Doublet

maximum

of frequencies.

grounded

(a) Determine

which

tilire

Antenna,-When

antenna

lead-in)

the antenna

works well where

is

over a relatively

and Az.If

A1,

A2 and

terminal

you

practical.

not

Antenna.-This

conditions

connected

be

outer conductor is

the inner

the outer

the proper length

the

wish to listen.

are poor

sensitivity is

The lead-in

a concentric

connect a
A2

and G.

frequency range

terminal A2 and

to terminal AL.

as high

narrow

to termi.

conductor
conductor

feet:

and free

the

signal to noise ratio is

Refer

to Fig.

type

where

or

re-

line

jumper

using

3.

a

single wire

G.

Use

fft4

from

surrounding

Figure

Then

connect

gauge copper

relatively

'TNGLE

wrRE ANTENNA

JUMPER

2,

Single Wire

DOUBLET

USING

antenna installation,

a

single wire

objects

high

Antenna

ANTENNA

TWISTED

PAIR

wire

TO GROUI{D

LEAD-IN

heavier for

or

possible.

as

and a more

rNsrALLATroN

OONIIECTIOiI

Installation,

INSTALLATION

connect a

of about

This

elaborate

50

best

type

to

J

(b) Divide 468

(in

megacycles)

quency end ofthe

(z) To prepare
stallation:

(a) Measure
determined in
sert an

of the lead-in

wave sections at the

shown

insulator

\frap and solder the two

@)

in

Figure 4.

by

of the

range

the antenna for

the wire to the length

(b) above

step

at

that

to each of the quarter-

the frequency

high

fre-

you

selected.

in-

in-

and

point.

wires

insulator

as

Figure

3, Doublel

TO

Anlenno

GROUND

COiII{EOTION

Instollation.

mind

in

Keep
so orientated

For reference to other types of antennae
A.R.R.L.
radio amateur

that this

if maximum pick-up ftom a given

Handbook,

"ham"

type of antenna

section

equipment.

on antennas. This

is directional

broadside

direction is desired.

refer

to the

book

latest edition

can be

its length and should be

to

from

Radio

most

of the

procured

Amateur's

V

dealers of

D-C

OPERATION.-This
storage battery,
pack.

The
will
voltage will
as

(1)

the socket

(2) Use
"8"

(3) Connect
on the

(4) Use
battery

about

be

follows:

Remove the octal

ffrc

supply connections

"jumper

rtt2

connections

(5) Connect

to pin

one
(6)

Solder

continuity.

trical

and

filament

70

run approximately 10

the rear of the chassis.

at

gauge

one of these

plqg."

gauge

one of these

rt7.

connections securely

the

CAUTION-Check

receiver may

27o-volts

current

milliamperes. The

"jumper

d-c supply

drain in

plrg" used for a-c operation

be operated
in

the

case

this

6-volt battery

amperes. The receiver

insulated copper wire leads

and-

wire leads to

insulated copper wire

pin

leads

ff3

and-

leads to either

wire

as to provide good

so

wiring carefully

the

before

form

will be

for the

and one

for

the

pin

rtt

connecting

a 6-volt d-c source,

from

dry batteries

of

about

5

using a vibrator

drain

is connected

from

26o-vok

to pin

or

fs

"A"

and

6-volt

elec-

uP to

or vibrator

ampefes, while

to

B-

270V. D-C

B+

rts

Figvre 4,

for

the battery

generally

type

"8"

the
supply

d-c supply

the

PfN VfEW

Wiring diagram

power plug.

d-c

suppli.

power

current

"B"

for

6V.

D-C

ezazte

a

\l

I

I

PRE-OPERATIONAL
recommended

(f)

See

location
(2) Check

in place.

(3)

Check

Remember

before

that the

each tube.

of

pilot

the

all external

an improvised

that

tubes are securely

CHECK-The

turning on the

lamps

located

connections.

power

seated

behind

See

installation

OPERAIION

following checkup

for the first time.

in their sockets.

dial escutcheons

the

that they

gives

OF

are secure

improvised results.

THE RECEIVER

a newly

on

Refer to Figure 7

installed

and see that

make poriiiu"

and

receiver is

for the

Proper

they are securely

contact.

t

I

I

,l

receiver from

THE CONTROLS.-Scanning

EXPLANATION
left to

l

NOTE.-Some
for the convenience of
setting

Reference to

right,

the controls

OF

control

the

of the conrol

the listener

mosr used

Figure 5 will

markings and

markings are

who

for the

help the

listener

an

explanation

in RED. This

is not familiar with

reception of standard

in

becoming

across

the front of

of each

familiar

is as

added

is an

radio terminology

broadcast

with

the

follows:

feature

stations.

the use of

incorporated

as

the

^n aid

conuols.

in

v

a

,f,).

)-J

I

I

J-.

,,

I

\J

1. SENSITIVITY

the control
"S"

meter

the control is

2. BAND

the listener.

main

the
sufficient

VOLUME

3.
level

the

4, A.Y,C.

reasonable

over

the sensitivity

ON to use the tuning meter,

Main

5.

reception

scale

instructions.

6. AM/C\/
quency necessary
AM position.

BAND

7.
control for fine
instructions.

clockwise increases

switch

SELECTOR

tuning

overlap to provide

volume most

of

switch.-This

TUNING

which

the dial may

on

switch.-This switch turns

SPREAD tuning.-This control is

control.-This

which connects

advanced maximum

switch.-This

The frequencies

Position

dial.

control.-This

pleasing

switch, when

variations in

of the

receiver

control.-This

is read

for making

tuning

on the

be

of short wave stations,

used for

control regulates

the sensitivity

the tuning meter,

clockwise.

switch selects the desired

covered

fit

continuous

control

signal strength at

when this

when one

main

code signals intelligible.

by each

(in red)

coverage

sets

to the

set at

is

control

tuning dial located

logging purposes

of the receiver.

band switch position

is

the

over the

the audio level at

listener.

"ON,"

circuit

on a local

is in

used.

tunes the

used

the use of which

the sensitivity

Ganged to this control is

when one

standard

provides

the antenna, i.e. it

operation. This

receiver

which

oscillator

For

in

conjunction

is

used, into

band or

broadcast

overall tuning range

the speaker

a constant audio

to the

to the left

ordinary

of

is

described

used

with the main TUNING

is

of the

to produce

receiver,

the circuit

frequency range

read

are

band. Each range has

is

and

automatically controls

switch must

desired frequency

the

control. The outer

later on

reception

explained

Turning

directly from

receiver.,

of the

to

be

output

be set at

in

the beat fre-

it is

set

in

later

thi

when

for

set for

level

these

in

the

these

of

NCISE LIMITER

8.
peaks
where
noise

9.
speaker

types
to the

frequencies

LOS/
position

frequencies

I

ing

I

J

ceiver while leaving
condition for
in a
putting

generated

reception

but will

TONE

or

response

of

receiver

(a) LO\Xz-The

.

(b)

position providing a response

(c) HIGH-The

10. PITCH

to amateur

11.

STANDBY-RECEIVE

standby condition

the

do a

control.-This control

headset

is

only.

MED.-The

is

preferred for

providing

control.-This

or

instant

receiver

switch.-This switch cuts in a circuit

electrical disturbances,

by

would normally

job

good

and also includes

available are-LOrW, MED.

disconnected.

and high frequencies

bass

bass and high frequencies are attenuated

voice communications when

bass and

response

good

control is

commercial

switch.-This

thq tube heaters

use. This

when transmitting.

in an inoperative

be

of limiting it

adjusts the tone qualities of the audible

medium

code

stations.

switch

thereby providing

impossible.

to

a switch which turns

more

for

frequencies are attenuated in

for high audio frequency response.

used to vary the pitch

switch

at operating temperature,

is

used

For the

condition

This feature

a reasonable level.

HIGH. In

and

are attenuated to provide a response

than the

disconnects

the radio amateur

by

general

ready

which clips the noise voltage

intelligible

will not

A-C power

the

the A-C

somewhat less

ordinary voice frequencies. This

the signal to noise ratio

of the code signal

d-c

the

thus

"ham"

listener it provides a means

instant

for

use.

reception in

totally

position

OFF

favor of the high audio

voltage from the re-

leaving

to

remove

signal for either

ON or OFF. The

than for the

will

when

receiver in

the

put

the

cases

the

the power

for voice

permit.

listen-

receiver

of

6'

s

a

c
o

lrt
E

o
a-

6'

-

o
o

o

=

o

F

?'l

I

6'
{

o
{
t'

c
o
o

o

o

I

d

2.r,

:o
3

OD

=o

o@

!D{

o

o

8r-

laq

'9'g

@

-o
9€

=e
r8

^o
36

g;r

irg
tc'2

99

iEfi

'96'

;e

=:

u

T

I

=rl
;$

#

r

-=+\
t

ir,

.!

;

V

tf

@€

@;
OJ

of
.o

gEc

da3

oc:

9.o
=o@

o_-;
'

oii
oo

9-9

a

-

I

I

I
5

c

3;ag

dr?1

B.;E

ii

i:!i

5 -'-

o *i

e69

i

o

\-/

BAND

use

the

frequency

tuning

BAND

"O."

at

station

You

control.

in

band spread

LISTENER.-To

control,

with

calibrations

SELECTOR

slightly

is

I

f.

:'{

a

J

t

FOR

ing

dial pointer

with

10

meter

dial

pointer
spread
BAND
ranges'
range
on the

FOR

the

band
dial pointer
and

then

IMPORTANT.-The
BAND

"HAM."-To

THE

the BAND

band. Set the

at

dial

pointer

SPREAD

although

of tuning

broadcast

THE

SHORT

spread tuning

counterclockwise

tune in

SPREAD

at

the high

SPREAD

mc (megacycles),

3o

tuning

the higher

on th_e

band.

\/AVE

the

dial pointer

OWNER'S

PREVENTIVE

the tuning
fully

without
caused
receiver.

/-t'
I

j

their

by dirty

Check

sockets.

MAINTENANCE.-Keep

capacitors. Dust

bending the

condenser

the switch

and
capacitor
wipers,

contacts

SPREAD

band spread

end

of the range

control.

at

the high
can now
The

frequency

set the

the BAND

on the main

ser at

listen

preceding

is the range

tuning

band spread

past

"o."

TTAINTENANCE

the various

dirt

should

plates

faulty

and

volume

controls

TUNING

dial,

set the

Exampler-Assume

position

end

of the 1o meter

in

on the L0

example

dial

scale. Band

in

tune

the frequency

SPREAD

be

in

short wave

tuning

blown out

the

slightest.

controls,

and make

to be

4 (t5.7

holds

of tuning,

dial

pointer

control.

dial

parts

dial

covered

meter

spread

of

the

scale are

of the receiver

with dry

Noisy

switches

sure

pointer

you

to 43

band, and

rrue for

the nariower

broadcast radio

at
station

that

"O,"

at

and

tune in

wish

to listen

mc),

set main TUNING

then

band

by tuning

any

of the*frequency

tuning is

"O",

set the main

you wish to

only

correct

clean,

air

or

brushed

reception

and tubes,

all

tubes

set main

the

set the

will

nor necessary

stations with

may

eic. in

are always

tun-

stations

in

on the

band

with

the

be the

tuning

tune in

when the

especially

o^ot .or"-

be also

the

in

Figvre

6, Rodio

REPLACING
fully

and
determine
type

sockets

25O

ma,,

glass bead above
PERIODIC

should

or shows
these
performance

I

A
from
ing

not

stages.

complete

any

for

this

TUBES AND

'replace

the location

"blue

require realignment

signs

one

with the correct

of each

illuminate

to

bead"

ADJUSTMENTS.-This

Alignment

is

obtained

service

of our distributors

bulletin,

G.E,

the

glass stem inside

of loss in

bulletin is

ask

Receiver

DIAL

tube. The receiver

the two

or

#47

until it

sensitivity,

should

only by intelligent

for

not

available

or

SERVICE

ltlodel

LAMPS.-\Ufhen

type. Refer

dial scales. Replace

equivalent.

the envelope

receiver

needs new

frequency

off

be attempted

for

dealers

BULLETIN

940, view

to the

The color

has

alignment.

use in

servicing

or by contacting

showing

replacing

top

employs

these
code referred

of

the

been carefully

tubes in

calibration

inexperienced

by

for Radio

{t,

fube locofions.

tubes,

of the receiver

lamp.

the r-f

this receiver

the factory

check

two

dial

lamps

with similar

to is

aligned

and mixer-oscillaror

requires

or

persons

dnd

direct.

Recliver

the

tube type

chassis,

types,
thi

at

the factory

service

can be obtained

Model

Fig.

with

b-ayonet

6/8 volt,

color

stages

work

as maximum

Vhen

inquir-

S-40.

care-

to

z,

of the

and

on

'r;

.r

V

meter is

The

is mounted at the

trol
instructions

tuning

The
request
the external
in the
metering

screen

from the company.

above

reception, the

current

PILOT

Figvre 7. Tuning

mounted in an attractive

front of the case

are supplied with

"S

first

METER"

the

meter

second

and

merer

connection of

illustration and should be

of

LIGHT

meler SM-4O snd schemolic

meter.

the

is not supplied with

Provision has been

"S"

meter. A

measures a voltage drop

i-f amplifier tubes.

case to

for meter zero

plugged

match

made on the

five

prong plug

into socket

wiring

receiver

the

adjustment.

receiver,

the

rear apron

is

wired to the meter

provided for

across a

diogrom,

cabinet.

Installation

but

resistor,

A zero adiust con-

can be

of the

this purpose. When

and adiustment

purchased

receiver for

indicated

as

i.e.

a change

on

\./

in

t-

vl

6SG7

R4

Iq

cdT

J_

:

r

I

I

I

I
I

6SA7

rt3

d

v3

6SK7

--v

I

RESISTANOE
VALUES

ARE lN DEOIMAL
OAPAOfTOR

----7

NUI{ERALS

ANTEHNAIMIXEF

AT
(T1

TO

LUoA

SHOWN
FOR
OPERATION

NOTE.

VALUES ARE

ARE IN

VALUES ARE

/

/

AT

T12 ) IDENTI

ON PTCTOnIAL

POSITION

IN

NO.I

IAND

lN OHMS,MICA

MMF. PAPER

DENOTESMEOHANIOALGANGM

BANDSWIIOH

CAPACITOR

IVALENTS

EOT

IN MFD.

(Sl

ANDOSCILLATOR

oORRESPONDING

FY

VIEIS.

CAPAoITOR

VALUES

ELEOTROLYTIC

OF MFQr

LETTERS

AND

)

TRANSFORM€Rs

TERMINAL

BANDSWITCH

S-I

,s.

ilETER

=

SOCKET

aTERl,

sHoYitl

s4B

swtToH

IN POSITION

t.

9

30
3l

,r

21

7i

23

32

@*

Dg

FOR

WAFER

aF

-:t-

s-rE

(END

NEARESTOIIASSS

REAR APRON)

REPRESENTS

TRANSFORMERS

T.I TO

T.I2

v4

6SK?

'5

6S07

v6
F6.G

6

G-

'13

+'

l"c,

I BLACK

Jisg

'T*

J-

.Lcqo

Tro-iro ./

R,n

47,do

SwrrcH

t-A.c oFF

(3W4t

ronE

Rzc

dJ.

,6

*--*aao-----,

J,'

:/

iidd

,t

/

2-HIGH
3-il€0rut
*-LOU

FORITIERS

T-l TO T.l2

T0

HEAIER9.

"8,

METER

SOCKET

Ttg

7

sroRTtNG PLUG PL2

IN

MUST BE
FOR

SOCKET SO.

A.O. OPERATION.

J

I

{Dsusntu

>J-

I

TJ

The HallicraJter's

Jactared

and agrees
changeJor
installation,
deliaered
utbolesaler
all
oJ
close=s tn ozr

haoe been
oilr oran,

Jarnisbed

altered oatside of our

tbereo/

ased thereutith not oJ our

be remedied or excbanged

saler uithoat

plied

any otber liability

by it to be

any

by the outner to t s or to oar ailborized radio

transportation cbarges

grlgi2su)urcbase-r

salzto

utarranty does not extend to any

Tbis

Ary

sablected

irnproper

by

has been remooed, deJaced

part

Tltis

utananty is in

and no representatioe or

Companl lpanafits eacb nera radio

to rernedy

/rom

oJ a

frce

any

part

of an! trnit

ase and seruice discloses sacb defect,

utbom

jadgment

as, nor extend to

cbarge

tbat

to miszse,

installation, or to

factory,

anit

approt

to the

connection uitb tbe

in

defectiue material and utorAtnansbip

/rom

szcb defect or toJarnisb a neu

of

mana/actare ubicb ander normal

its

parcbased,

prepaid

oun mana/actare,

liea of all otber utananties

intact,
utitbin ninety

and

Prooided

thrs deJectioe,

it is

neglect, accident, incorcect uiring not

nor to

ed

for

by

the ailhorized

outner,

person

of

ilse

zrits utlticb baoe

cdses ubere the serial number

or cbanged, nor to

remedT or exchange bereander utill

is

proaided

our examination, uitb

/or

days

tbat sucb ex4mlaalion di1-_

radio

oar

in aiolation

radio dealer

aathorized to assilnte

sale oJ otr radio

product

part

Jrom

prodacts

of

instractions

been

repaired or

expressed

mant-

in ex-

the

unit h

dealer

or

the date

utbich

accessories

utbole-

or

or im-

ils

Jor

prodacts,

_-