Hallicrafters S19-R User manual

OPERATING

ALIGNMENT &

SERVICING

INSTRUCTIONS

FOR

SKY

BUDDY

RECEIVER

MODEL

S-I9R

the

liallicraft

ers

inc.

2611

INDIANA

AVENUE

CHICAGO

01253919R

OPERATING

INSTRUCTIONS

Sky

Buddy

Model

S19-

The

model

S19-

Sky

Buddy

a 6

tube

band

superheterodyne

receiver

covering

the

following

frequencies:

Band

1 -

540 KC

1700

2 -

1.7

to 5.5

3 - 5.5

17.0 MC

4 -

16.0

46.0

ANTENNA

For

successful

operation

the

receiver

throughout

its

tuning

range

very

sat-

isfactory

results

can

obtained

with

inverted "

type

antenna

feet

long overall.

When

this

type of

antenna

used

the

jumper

should

remain

con-

nected

between

and

the

operator

should

wish

obtain

the

maximum

performance

from

the

re-

ceiver

any

one

frequency,

suggested

that

half

wave

doublet

antenna

cut

for

that

frequency

installed.

The

formula

for

calculating

the

overall

length

this

antenna

is:

Length

feet =

Frequency

megacycles

463

The

antenna

cut

the

center

and

connected

twisted

pair

transmission

line

having

characteristic

impedance

ohms.

The

other

end

this

line

connected

the

and

antenna

posts.

This

antenna

will

not

perform

well

harmonic

frequencies

but

should

bet-

ter

than

the

inverted "

on the

frequency

for

which

has

been

designed.

Performance

the +

band,

even

with

suitable

antenna,

subject

vary-

ing

conditions

of the

time

the

day

and

year.

ground

usually

not

necessary

for

satisfactory

performance

the

model

S19-

Sky

Buddy

receiver.

ground

does

prove

helpful

connected

the "

post

the

antenna

terminal

strip.

cold

water

pipe

a 6

foot

rod

driven

into

moist

soil

are

good

ground

suggestions.

Connections

rad-

iators

and

gas

piping

are

not

advised.

CONTROLS

AND

OPERATION

The

model

S19-

Sky

Buddy

equipped

with

conveniently

arranged

controls

enable

the

operator

realize

the

maximum

performance

from

the

receiver.

MAIN

TUNING

This

control

rotates

the

large

calibrated

dial

that

the

desired

frequency

can

easily

located.

The

accuracy

calibration

held

toler-

ances.

This

calibration

will

correct,

however,

only

the "

Bandspread'

dial

set

at "

minimum

capacity.

GUARANTEE

This

receiver

guaranteed

free from

any

defect

workmanship

and

material

that

may

develop

within

period

ninety (

90)

days

from

date

purchase,

under

the

terms

of the

standard

guarantee,

designated

the

Radio

Manufacturers

Association.

Any

part

parts

that

prove

defective

within

this

period

will be

replaced

without

charge

when

subjected

examination

our

factory,

providing

such

defect,

our

opinion,

due

faulty

material

workmanship,

and

not

caused by

tampering, abuse

normal

wear.

All

such

adjustments

made

FOB

the

factory.

Should

this

receiver

require

any

adjustments,

your

dealer

distributor

has

complete

technical

service

information,

the

factory

will

glad

assist

you

any

problem

direct.

Should

necessary

return

any

part

parts

the

factory,

a "

Return

Material

Permit"

must

obtained

advance

first

writing

the

Adjustment

Department,

who

will

issue

due

authorization

under

the

terms

the

guar—

antee.

The

Hallicrafters,

Inc.,

reserve

the

right

make

changes

design

add

improvements

instruments

manufactured

them,

without

incurring

any

obligation

install

the

same

any

instrument

previously

purchased.

All

Hallicrafters

receivers

are

built

under

patents

Radio

Corporation

America

and

Hazeltine

Corporation.

"BANDSPREAD"

other

similar

receiver

but

the

S19-

Sky

Buddy

can

found

such

ex-

tremely

smooth

and

satisfactory

electrical

bandspread

action.

The

stator

plates are

integral

part

the

main

condenser

and

the

separate

rotor

sec-

tions

are

driven

gearless

mechanism

through

the

separate

bandspread

knob.

The

controls

along

the

bottom

edge

the

receiver

are:

SEND-

RECEIVE

SWITCH

which,

when

the "

send"

position,

removes

plate

voltage

from

the

tubes.

The

BAND

SWITCH

allows

selection

any

one

the four

ranges

covered

the

receiver.

The

newly

incorporated

meter

band

will

prove

most

inter-

esting

when

conditions

are

favorable

for

reception

that

range.

The

B.F.0."0N-OFF"

SWITCH

allows

optional

use

the

Beat

Frequency

Oscillator

and

used

when

the

operator

copying

code

signals.

will

addi-

tional

help

locating

weak

fone

signals

first

locating

their

carrier.

Once

located,

the

B.F.O.

may

then

turned

off

eliminate

the

whistle.

The

PITCH-

CONTROL

Knob

allows

the

operator

vary

the

pitch

the

beat

note-

when

the

BFO

switch

the "

on"

position.

Selection

the

pitch

the

beat

note

most

pleasing

the

operator

will

help

copying

through

interference.

The

A.V.C. "

OFF"

and "

ON"

Switch

for

optional

use of

auto-

matic

volume

control.

Should

the

strength

the

telephone

signal

strong

block

the

receiver

the

A.V.C.

switch

should

be "

on".

For

maximum

sensitivity

leave

the

AVC

switch "

off"

and

manually

adjust

the

gain

the re-

ceiver

with

the

audio

gain

control.

The

receiver

turned

and

off

with

this

control

and

additionally

provides

variation

the

volume

delivered

the

receiver

suit

the

requirements

the

listener.

Headphone

Jack

mounted

the

panel

the

right

the

Pitch

Control

Knob.

When

headphones

are

used,

inserting

the

phone

plug

the

jack

automat-

ically

disconnects

the

speaker.

The

tube

lineup

the

S19-

Sky

Buddy

is as

follows:

6K8G

1st

Detector -

mixer

6K7G

Amplifier

6Q7G

2nd

Detector -

1st

stage

audio

2nd

Audio Amplifier

BFO

Rectifier

The

Sky

Buddy,

model

S19-

draws

watts

117

volts,

cycles

A.C.

The

Hallicrafters,

Inc.,

reserve

the

right

make

changes

design

add

improvements

instruments

their

manufacture

without

incurring

any

obliga-

tion

install

the

same

any

instrument

previously

purchased.

ALIGNMENT

PROCEDURE

FOR

SKY

BUDDY

MODEL

S19-

ALIGNMENT

Have

the

controls

set

follows:

Audio

gain

control

maximum

A.V.C.

switch "

on".

Range

switch

Band

Set

main

dial

minimum

capacity

5.5

M.C.

position

Remove

6K8

grid

cap

and

connect

signal

generator

this

tube.

Set

signal

generator

for

455

output.

Adjust

trimmers

transformers

Tl,

for

maximum

output.

For

adjustment

the

B.F.O.,

place

the

BFO

switch

the "

on"

position.

Re-

move

the

knob

from

the

pitch

control

shaft.

You

will

see

small

adjustment

screw

the

center

this

shaft.

the

under-

chassis

side

this

shaft

you

will

see

set

screw

which

should

loosened

in order

allow

adjustment

the

screw

the

center

the

pitch

control

shaft.

Adjust

zero

beat.

Tighten

the

set

screw

and replace

the

knob.

Should

the

BFO

still

fail

op-

erate

check

the .

0005

condenser

the

BFO

circuit,

the

BFO

tube.

ALIGNMENT

Connect

the

generator

the

terminal

the

antenna

terminal

strip found

on the

rear

apron

of the

chassis

through

400

ohm

resistor.

Leave

the

jumper

connected

between

and

The

trim

and pad

points

for

the

bands

are

in-

dicated

below:

Set

the

signal

generator

the

required

frequencies

for

each

band,

adjust

the

main

tuning

dial

those

frequencies (

with

the

bandspread

condenser

mini-

mum

capacity)

and

then

adjust

the

indicated

trimmers

and

padders

resonance.

Trim

Band

j.Pad

idia)Kc

Adjust

CA CE

Adjust

Adlu

si Cc

Adjust

CD CH

Band

600

Adjust

None-

check

None-

check

at iB

the

two

high

frequency

bands

where

padding

adjustments

are

found,

the

checking

frequencies

should

fall

within

division

the

dial

calibration

with

further

adjustments.

During

the R.F.

alignment

process

it is

advisable

to "

Rock"

the

main

tuning

condenser

across

the

frequency

which

you

are

making

adjuslduents

the

re-

ceiver.

Once

the

exact

point

maximum

output

obtained

further

adjustment

unnecessary.

1 I 1

455

r-LT

C24

C25

® ®

455

KC.

C6K8

OSC.

-r-

MIXER

SKY

BUDDY

MODEL

S-I9R

A.C.

CORD

„

4 C

® ®

CI 4

OSCILLATOR

® ® ®

I 3

2 -

BANDS

MIXER

BANDS

0 2

0 3

SI9R

CONDENSER

PARTS

LIST

SI9R

RESISTOR

PARTS

LIST

NO.

CAPACITY

TYPE

VOLTAGE

Cj. .

000375

mfd.

Maintaining

3 .

200

4 .

400

5 .

200

6 .

200

710

300

8 .

200

9 .

0001

Mica

10 .

0001

11 .

200

12 .

200

13 .

200

15 .

600

16 .

400

17 .

01 "

400

18 .

0001 ..

Mica

19 .

0005 ..

300

350

22 .

600

23 .

0001

Ceramic

24 .

000375

Pad

25 .

001 ..

26 .

0043 .,

27 .

0001

Mica

28 .

01 ..

600

NO.

OHMS

WATTAGE

300

1/3

50000

i0000

500

1/3

3500

25000

50000

1/3

300

1000000

Variable

500000

i/3

250000

1000000

600

1/2

50000

1/3

50000 ..

3000

1/2

10000

1/2

SWITCHES

A.V.C.

on —

off

Send —

Receive

BFO

on —

off

SCHEMATIC

DIAGRAM-

SKY

BUDDY-

MODEL

S-I9R

6K8

6K7G

6Q7

•

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