Crescent 900 Series Schematic

ar

Fra

Go

eo

no.

&t

tr.

L,

o

E

PnoToFACT*

FAST

o

L

o

RADIO

INPUT JACK

The Cresent

material 5"

or 7" reel

from a.radio,

microphone.

speaker

The

diff_ere,nce

at 7

l/2"

as f oliows:

Models

CAUTION:

FolJ"t

FORWARD

coNTROt_

-PHONO

TV

on standard

through use

Cresent

being

per

Severe Damage

900 S91i9s.T1pe

of tape

television receiver

Recordings

Models

that Model

second.

Size ReeI

5rt

7"

903

and

VOLUME CONTROL

(V4'\

width

with no loss

can

Output Jack.

903

903 has

Using

both channels

Speed

designed

be

of the

907 are

WiIl Result

OFF

GENERAL

Recorder

recording

of frequency

phonograph,

or

piayed

and

907 are

a

tape_spe-ed

Model

3/4"

-3

hour

t

2

hours

to operate

Manufactured

Crescent

5900

Chicago

TONE

CONTROL

ON SwlTcH

-

Figure

INFORMATION

is designed

tape,

iesponse

back

through the

fundamentally

of

the

903

per

sec.

If

Connection

trndustries.

W.

Touhv

31,

PLAY

CONTROL

RICORD

-

I

which doubles

of.3

tap6,

on 60 cycle,

Av6nue

to record

or

in additionto

self-contained

identical

per

3/4'\

tie recording

Speed

Is Made

by:

Inc.

illinois

KNOB

AC

REC-FTASLE

the

quality.'

tliose

second

Model

1/2,,

-7

l/2

hour

t hour

110-120

To

A

Direct

C6RD

L;NE

play

and

playinf

in

while

g0?

back

time

R-ecdrdings

made

speaker

construction,

Model

time

for

per

sec.

volts,

Current

MODET

RECORD

LEVER

INDICATOR

two

of a standard

can be made

diiectty

or in

gb?

both models

AC

suppty.

(DC)

CRESCENT

9OO

tracks

the

from

the

external

major

operaies

Line"

of

is

Series

=o

E,

mfi

Fn

ofi

Oo

o2

gl

-{

o

I

I'

g

HOWARD

lA/.

sAtvls

fhis molerial

co.,

&

DATE

5-54

compiled

ond

published

by

tNc., INDIANAPOLIS,

.

sET

INDIANA

239

TOLDTR

3

+ffi",

#

'ry

SPECIFICATIONS

Model 903

Fast

Speed

---

Freq.

Response

Model

907

Fast

Speed

---

Freq.

Response

Model

903 & 907

Powel

g4I

Power

Requirements: 110-120 volts

70 watts.

@

Output:

Inputs: Mike

Imp.

5" reel

---

5"

---

2

watts undistorted

1 Meg. Imp.,

-

45 sec. ?" reel - 90

-

65 to

6000

reel

45 sec" ?" reel - 90

-

65

10,000 cycles

to

Outputs: Int. 5" Speaker, Ext.

1 Meg.

Bias

& Erase

1. With

position,

on

the right side

2.

receptacle

for Ext. Amp. or

Imp.

Freq: 50

OP ERATING

the

insert

the AC

of the cabinet

PIug

the AC cord into

proper

of the

KC.

INSTRUCTIONS

On-Off Tone Control

power

cord

rating.

per

-

3 watts

-

(-}

Speaker,

in record.

sec.

per

60 cvcle

cycles

Radio-Phono

3.2

Monitor

in the

into

(Figure

the

1).

a convenient

sec.

AC

max.

Meg.

..5

Ext.

"Off"

receptacle

wdll

Figure

2

Threading The Tape-

1.

(?)

and

sure

the

2.

Hold a section

insert

coated side faces

the

NOTE:

3. Insert

the three

Turn the

is secured

tape between reels.

To Record From Microphone-

1.

until a click is heard

for the

2. Insert

jack.

3. Depress

far as

holding it

4. HoId

y.our

mouth and speak

Place

a reel

an empty

reel

slots

Unwind about

of

tape in

This recorder

the dull magnetic the reel.

side facing

made at back

will be almost

radial

reel

several

of tape on the

reel on

engage

the tape straight

the tape slot making

the rear

uses

If the

outward)

a very low

the free end

slots in

to the

Turn

the On-Off Tone

tubes

it

will

down.

to warm up.

go,

the

and allow about

the

microphone

play-record

the

turn clockwise untit it locks

microphone about six inches from

in a normal voice. Adjust

left

the

10"

tape

reel

pins

the

of tape from

of the recorder.

Type

"A"

side faces inward

coated

used is

the

sound level and

inaudible.

of the

the hub of

turns,

reel

clockwise, until the

and all slack

plug

reel

(2)

the

tape,

"B"

the

into

plate

making

plates.

reel.

i. e.

(coated

will be

play-

one of

right

plate

on the reel

with both hands and

sure the dull

wound

Type

recording

tape

the empty reel.

is taken up

Control

control knob

clockwise

thirty seconds

into

the

"Mike"

(4)

while

the

on

as

Page

2

"Volume"

flashes on the

NOTE: Correct

control until the

loudest sounds.

Too

weak

record

weakplayback

strong a signal, causing

level

flash continuously,

during

To Record From

Recordings

of three

playback.

ways:

1. Place front of the

volume too tone

cording

described

This type

as other sounds

phone tape.

control

high will

cbntrol

level and

which

2. Have

conductor

tor clips

across

clips

speaker

radio

"Radio-Phono"

controls

tone

cording "To

3.

phone

nected

the

Set the

level

Record

Have a shielded

plug

acioss the

phone

recording

record level indicator

recording

a signal,

Radio-

from

the

radio

cause

to

under

recording

of

as

a shielded

phone

on the

From

on

plug

volume

indicator to

andhigh backgroundnoise.

radio

a

microphone

speaker.

a normal

to

distortion.

maximum

proceed

Record

"To

may be

a result wiLl

cable

plug

on one

end.

other

voice

the

and insert

jack.

described

as

proceed

and

Microphone".

cable with

end

one

radio

into the

level and

is very important.

does not cause the

which

flash, will

the

result in

will

may

about 6"

treble.

From

not be satisfactory

may

picked

made

end

Connect

coil terminals

the

Set the radio

above.

as described

and

the

volume control.

"Radio-Phono"

result in

level indicator to

level.

with

be recorded

distortion

be made

to

the

Turn

Setting

Turn the

Set the

recording

Microphone".

up by the

with

up

and two

the

by one

12" in

radio

micro-

on the

a

alliga-

alligator

on

plug

cord

a two

other

proceed

into the

volume

the

Set

under

conductor

end con-

Insert

with the

Too

re-

as

two

the

and

re-

jack.

Figure

it

3

recording

as described under

Microphone".

and tone controls

and may be set anywhere.

Record From Phonograph-

To

If the

on the

If the

is more

The

microphone

phonograph

pickup

jack.

phonograph

plug

"Radio-Phono"

1.

plug

type

"Radio-Phono"

proceed Record

with the recording

From Microphone".

2.

plug

which

insert

adaptor

IMPORTANT:

the

into the

is inserted

From

Record

To

1.

under

recording

Microphone".

Dual

the

ing

is

Use

"To

Track

The

width

tape

two

in

accomplished

After

1.

alt of

turn

2. Remove

ing the

reel

plate

Television

one of the

Record

as

Recording-

Crescent

track

the

plate

(2).

From

described under

recorded

is

recording.

in the

a reel of tape

the tape

play-1u"ord

the

reel over

full

(?)

and

position

The

has

of the

no

effect

being used

leads, insert it

Set the recording

as described

a standard

has

the

wiII

play

or

in the

Receiver-

three

Radio"

an adaptor

adaptor

jack.

"Radio-Phono"

methods

and

common,

into

recorder

"To

designed

is

following

wound

reels from

the

so that

at a time;

This two

manner:

been

has

on to

control

the

placing

and

reel

empty

Record From

"To

radio volume

on

this

has

into

level and

under

is

plug

and

not record

while

back

described

proceed

Record

only

thereby

operation

track

recorded,

take-up

the

(4)

idle.

to

recorder,

it on

on the

set up

phone

a

the

"To

type

needed.

the

from

plug

a

jack.

the

with

From

one-half

result-

i. e,

reel'

turn-

right

the

reel

left

3

o

g

mfl FF

eu

Oo

o2

ta{

o

!

I'

o

l,l

Page

3

Figure

4

3,

Properly thread the tape and

recording.

the

4. After

track of

this track

recording is ready

rewinding, by reversing in step 2 above.

Fast

Forward And Fast Rewind-

High-speed

pressing

by

head

cover. Movement

the

tape on the desired

as

used

recording

control

the

primarily

in a few seconds.

CAUTION:

forward or reverse

desired

the

is held

in locating

Do not attempt

Rewind" with the

anything but idle

on

to the

unit or breaking of

result.

Braking-

The Crescent

when

in high

Forward"

"Fast

the head

time.

continue

"Fast

machine

time.

in motion

For

Rewind"

If a

speed, either

cover and

example:

to hold

control and

control

stops,

coasting

and

tape

and

release

wiII

proceed

has been recorded

the reels as described

(9

knob

played

be

to

can be

or 10) toward

of these controls will wind

reel at a high

in this

positiorr-

a desired

"Fast

play-record

speed

portion

Forward" or

position,

the

is

equipped

with a

direction.

Rewind"

"Fast

then release

when in

with

toward head

both

stop

is desired,

to

3lide

controls toward

both

at

fast forward speed,

the

other

coverd

controls

a

momentum

at

release

with

first

the

without

obtained

the

as

long

These are

of a

"Fast

control

damage

as

may

tape

quick

stop

Move

both

same

the

hand

move

When

the same

control

stop.

(4)

A

To Piay

Tape".

the

depressing until it locks.

out

desired listening level.

for

To Use

having

ing

spbaker

type

automatically

Edit

To

NOTE:

Recording-

1. Thread

2. Turn

3.

Adjust

An External Speaker-

Anysize

a 3.2 ohm voice

extension

an

and

as microphone

And Splice Tape-

Since it is impossible to

track

tape

play-record

the

speaker of

cord

inserting

then

plug)

cuts out the self-contained

without affecting the other,

which are to be edited

one track only.

The

1.

wanted

sequence.

selections,

spliced

nal,

side

portions,

Announcements may be inserted

etc. Unused sections

together

2" For best results, cut tape

joinends

and trim

may be edited by cutting

tape

or by

re-use.

for

together

off any excessive

as described under

control

"Volume"

coil,

across

into the

and

permanent

the

may be used

the

extension

the

"Output"

edit

should be

jr;ining

selections

"Threading

(4)

clockwise with-

"Tone"

magnet type,

by connect-

voice coil of

plug

jack.

speaker.

and splice one

recordings

limited to

into another

of tape

with splicing tape on the

at a slight

width.

controls

the

(same

This

out un-

between

can be

diago-

glossy

Page

4

Erasing Recorded

In

the

is automatically

on the. tape. without

recording set at its extreme counterciockwise

To Use As

Phono"

position.

putting

procedure,

A Public Address

1. Insert

jack.

Leave

Z.

3. Speak into the

"Volume"

and

4. Do not have

speaker

Removing

or a feedback

Unit

Material-

record

position

erased

If it

anything on the tape

the

"Tone"

From

before

is desired to

leave

but

microphone

play-record

the

microphone and adjust the

controls

microphone too close

the

howl

ADJUSTMENTS

Case-

any recording

a new recording

the

System-

plug

for

result.

wiII

All service work except cleaning of

pressure

and pressure pad

from

the carrying

1.

connect

head screws from bottom of

lift

Spindle

The spindles should have from

roller

assembly requires

To remove unit from

power

unit straight up

(11

and

of up and down movement.

and adjustment of the

case.

cord and

12) End Play

remove

and out.

Adjustments-

Loosen

carrying case,

-;*::ri

on the tape

is

a recording

erase

follow the "Volume"

position.

into the

control

desired level.

removal

the

case and carefully

l/32" to

the

normal control

"Radio-

(4)

in idle

to

head

the

head and

the unit

of

Phillips

four

l/16"

set screw

put

the

dis-

in

Figure

5

pulley

the

until the

Take

plate

seconds.

take

or

a

start

tape

doesn't take

(46)

takes

will increase

decrease

CAUTION:

(54

or 55) and move the

correct amount of end

Spring

Up

Place

(2).

reel should

up

little after the capstan

pulling

before

point

at

up

(46)

Adjustment-

a fuII

Rewind on

Place

?"

the

reel

the

unit in

start

There

tape.

it starts

up at all, bend the take up

"A"

properly.

the take up while

it.

Do not

up or

take

take up.

to

on

exploded

Bending the

bend spring

the tape

of tape

the

revolving at

should

fast forward before

reaches the capstan.

Take Up

the

the tape.

the

stop

motorboard

up

the tape stop arms should be bent to force the take

arm to take

just

Reel

-*"

reels should stop

AIso

control is released

without looping

feed

and

is not moving are

(43)

and the feed reel arm

enough belt

up

start to revolve without the reels

play-record

counterclockwise

ment.

With

(2)

Seat

*

@t-*"""a

when in fast

(point

'Brr

reel

arms

control

position

reels in

the

And

Feed

right away

the

the tape.

exploded view) that the take

on

(43

and 51)

tension

(4)

should be in its extreme

when

place

pulley

play

on

feed reel for

"Play"

pressure

and

be no looping of the

If

view until the recorder

up

is

obtained.

take

the

position.

same time

the

roller

the tape

lever spring

spring

bending inward will

(a6)

*ntrol

forward

give

to

will start

pressure

the

(4)

prevent

to

or

is released,

rewind

reels should coast to

The

what

(51)

so

making

spindles should

the

stop

rest

against when

govern

over

that the

in

arms on the

this.

far

place.

this

or down

up reel

about 10

The

(18)

loops

or

outward

too much

go

into

to

roller

looping of

and

The

up reel

enough

spindles

The

adjust-

not

3

o

E

nr

at

FV

eu

Oo

o2

(A

-l

o

:.

o

a

PaEe

b

w

I

:4

I

i

I

e

-Li

vw

Ni i o$i

i

ci

i i:,/ i

I

(2lLkaE,

#

i

d

ll tt

trage

A PHOTOFACT "EXPLODED''

Howord

W.

Soms

@

Figure

6

64.

Exploded

View

&

of

VIEW

lnc.

Co.,

1954

Above Baseplate.

Parts

-=.**:-_-l

3

o

E'

Ftlrl FV

€u

Ori

o2

Ul

o

T

E3

o u

-l

Figure

Exploded View

68.

of

Parts

A PHOTOFACT

Howord

@

Below

W.

tsaseplate.

"EXPLODED''

Soms

& Co., lnc.

VIEW

1954

Page

7

6V6GT

6X5GT

Figure

laAXZ

?

5879

Page

Figure

B

-X

=t

+F

e

6\O

q

oF

?o

=

o

oE/

Srar

F

e€

+>

a

1ffi.

-lF

@

E

l<

o

a

UJU<q>

o

f5

9.tko#t

ts

.J

ar

-J<

l

UJ

k

z

tr

\z

<9

@

6eg

5

-ilf-Jt'

il*-lr'

oF

$=

Page

9

llF]

't#

r

-

-J1''

o

C\J

O)

?

ll|-l

o

UI

n

I'

Orr

o2

€u

mct

FV

o

3

E

(point

If one

revolve.

arm

revolving.

Lifter Arm

This

on

play-record

the

the record

depress and turn

wi3e.

Loosen

or the

on

"B"

(23)

Adjustment-

adjusts

position.

the

and rotate control

center

end of the as far as it will

Play-Record-Erase

perfectly

bi

the the be changed. sealed in ments

the contact

switch.

go

important

very

It is

with lhe

trigh irequencies

is

h6ad

head and the

place

be made

to

1. One

a

ing

on the

mounted.

this

removed.

head height

head-slowly

the

hitting the

is

motorboard.

replaced,

be

io

brdcket

The

at the

is

the

.1?9"

motorboaid

The

gauge

and tightened

If a

tipe.

bracket

which

while the

2. The second

frequency

cording

Place this

aligned

votmeter the

back

to the this,

age-at the

in the

the

ing it. If

made,

response.

-of

a SOOO

on

on.

across

3000 cycle

and forth,

motorboard

notice the variation

and

voice

position

head was

a 3000 cycle

record

it on another

be adjusted

note response.

After setting the

track overlap.

no recording on it.

head has beenadjusted

the

the reels

off, reverse them

There should be

corded

lap. If

should be bent

Pressure

is heard backwards

this

Pad Adjustment-

This applies

and the'liead.

tape

hotds

that

record contiol

ward until the

spring 1/16".

paialiel

id

NOTE: When ordering

get

and rock the

To

is the case, the

up to move the

pressure

(4)

pressure pad

Make sure the

the

with

complete

the

6racket.

other

exploded

the

switch will

view) over until

distance that the

If an adjustment

play-record

slrew in the

set

(4)

knob

to

strip with the

Make sure

and tighten

Head

lifter arm

its set

Adiustment-

that

is not,

If it

br track

the

(i9)

adjusted

is

overlip.

that

factory.

as follows:

are

height. This

head

(between

gauge

(34)

under

head is

gauge

pushed

is not obtainable

unit

up until

edge

the

of the tape

adjustment

To set this

cycle

the unit

Connect

tape,

screw

coil,

that the

an output

speaker voice

the

rock the

(26)

bracket

Tighten the

of highest

not

moved

a record with

Play thi.s back

unit.

and output check

height

do

this take

Make a

no sound

the correct

To

ctobkwise.

head and

The

recording on the

on.

and

heard. If what

then there

guide

tracks

adjust tliis,

pad

bracket

front

tighten

a replacement

assembly of

bracket

does, force the

it stops

contact

move when

control

the

contacts

the

complete

it mounts

There are

going

necessary,

is

(4)

arm

lifter

left or right

on the

(23)

screw.

head

low output,.

may

to the

is

lined up

be

result.

assembly

in should

head

adjust-

two

is set be

ll/64"

place

in

pulling

is

top edge

and

the

where

flush

down

and the

tape.-

of the

guides on the

head is

set

is for output

make

good

signal on

a

head

is to

meter

coil.

holder

head

holding

will allow

up or

signal tape

head to

a reel of tape

Do not rewind

play

pressure

Move bracket

moves

is adjusted

the holder

in the

output.

down while

some

give best

the

is track

the head

on

further

.loosen

(15).

back

edge of the

screw

head,

you

output

head

Make

cannot

notes

high

on the

that

unit that

other

was

apart,

between

screw

Turn

(15)

against

(13).

be

plug

to the

unit for

but take

stop

strip

into

clo.ck-

(23)

to

left

down

los's

If

of

and

plac-

3/16")

with

gauge

the

Move

tape

and

a re-

unit.

be

AC

or

PIay

(19)

on

do

to

v_olt-

holder

sure

rock-

be

on

unit to

high

has

track.

re-

over-

holder

the

(13)

play-

for-

its

bracket

sure to

a-nd

indi-

vidual

when ordering

get

to

and

individual

Balance

Hum

If tubeVl

setting

the checked. the Speaker".

A-C scale

"Volume"

plav-record

AC-meter

(R3). df tiie

exceed

in the

as described

unit

across the

and

on

which

chassis,

volt.

.1

amplifier.

The

should

proximately are

be

replaced,

With

1. Take

Feed reel

2.

3. Spindle

4. Flywheel

Idler roller

5.

Pressure

6.

With Staput

1. Pressure

guide

the

2. On the

CAUTION:

Take

Won't

Spindle

1.

2, Improper

Belt

3.

Belt

4.

5.

6.

and sealed

head

the complete

plug.

Adjustment--

ol the

do

To

a replacement

pulley

The

motor

is replaced

orV2

hum balance

connect

this,

assembly

and is

under

Connect

control

the

is

an AC voltmeter

speaker

.1

volt

controls

(4)

in

scale

minimum

"Tone"

located between

to its

This is the

LUBRICATION

year,

Motor

up reel

arm

(11

(49)

applied

for a

the unit

Oil-

arm

(51)

12) bearings.

and

bearings.

(56)

bearing.

lubricants sufficient

once a

Iubricate

No. 20

roiler

312

No.

(33)

plate

right side.

on the

stud of

Donotoil the

lutelynecessary

thrown off and rollers.

possible.

and rollers wipe off

vent, such tetrachloride.

UP TaPe

(a)

Lubricate.

(a)

See

(61)

(a)

Ctean

(61)

(a)

Remove

screw

Set

(a)

Tighten

play

in spindle.

(54)

PuIIey

(a)

Replace

and cause

If oil

as alcohol.

TROUBLES

Properly-

(11)

binding.

take

"Take

slipping.

rir-otoi

broken.

bracket

loose in

and leave

broken.

pulley.

the

motor bearings

up

Up Spring

at the

factory.

motor,

of motor,

is turned

not interchangeable"

head changed

or the

(R3)

pot.

an external

Use

"To

voice

clockwise.

"Play"

and

tubes

with

coil.

position. Put the

adjust the

and V2 on

V1

reading.

adjustment

only

at time of

period

long

in the event

or

as follows:

(43)

bushing.

(18)

bearing.

grease

at the

lifter arm

as excess

Always use

should

spring

puttey

(64)

puIIeY

of t:me.

lubriplate-

or

slide buttons

(23).

oilwill only

slipping of the

as

get

on the

apetroleum

with

Do not use

(46)

adiustment.

Adjustment".

pulley

and

and replace

(54).

l/ 32" to

Also,

sure

be

pulley

down on

should

speaker to

External

An

1 volt

a

.

Turn

Place

pot.

hum

should

It

required

manufacture

parts

that

unlessabso-

pulleys

little

oil

pulleys

carbon

(54).

belt.

16" end

1/

the

be

the

top

not

Ap-

and

be

as

sol-

Page

10

Fast

Forward Won't Function Properly-

1. See above

Fast

Rewind Won't Function Properly-

1. Spindle

(a)

Belt

2.

(a)

3. Belt

(a)

4.

Set

(a)

play

5. PuIIey

(a)

Speed

Variation or Wow-

1. Slippage.

(a)

flywheel and capstan

roller

carbon tetrachloride. Replace rubber

ers if they

2.

Too much

(a)

"Take

Drag Adjustment".

3. Flat spot on rubber

(a)

except

for step

(11

or 12) binding.

Lubricate.

(62)

slipping.

Clean motor

(62)

broken.

Remove bracket

screw loose in

Tighten and leave

in spindle.

(55)

broken.

Replace

Clean

Check adjustment

puiley.

motor

(18)

with

appear

feed reel drag.

Reel Seat And Feed

Up

A rapid thumping sound

is running may indicate a flat

rubber

of the not

clear

ning

time,

tires.

up after several minutes

replace

pulley

and

(64)

pulley

l/

pulley,

(49)

petroleum

a

oil soaked.

as described

roller

If

defective roller.

the

2.

(55).

pulley

and replace belt.

(55).

32" to 1/

idler roller

and

16"

(56),

pressure

solvent,

ro11-

under

Reel Seat

(18)

or

(23).

while the

spot on one

this condition

of run-

ELECTRICAL PARTS

end

not

unit

does

(b)

If the surface of the

smooth and even, repla.ce the

(c)

Should

bearings of

the

sigrts of excessive wear or

wobbly,

Tight feed

4.

(a)

Check

"Spindle

(b)

Lubricate.

5. Tight

6. Tight

7, Tight

B.

much

pressure

(a)

Lubricate.

flywheel shaft

(a)

Lubricate.

(a)

Lubricate.

Pressure

pressure

(a)

Check adjustment

"Pressure

and

tion of tape coating residue, which is worn off the

as it

tape

roller

passes

record-playback

The

pressure

tion, weak output and

and alcohol to clean pressure

roller.

CAUTION: Do not use a

when cleaning

as this

face.

LIST

rollers

the

or take up

adjustment as described under

End Play

roller

idler roller

pad

CLEANING

(18)

these

could

(56).

assembly

against

Pad Adjustment".

head

are subject to an accumula-

parts.

poor

erasure. Use a soft cloth

head surfaces,

the

brush or any metallic object

the

possibly

rubber

tire

part.

rollers show

the

be extremely

be replaced.

should

spindle

Adjustment".

(18).

(49).

tape.

(11

(15)

applying too

or 12)

as described under

(20),

capstan shaft

This

can cause

capstan

record-playback head

mar

the

not

is

distor-

and

head sur-

o

=

I n6

FF

ttl

-

9la

Oa-

o2

gr{

o

:.

o

u|

Ref.

No.

v1 v2

V3

v4 c1A

c18

c1c

c1D

C2

c3

C4

c5 c6 c7 c8

c9

c10 c11

ct2

c13

c14

c15

c16

R1 R2

Part

No.

?3 003 I

730022

?30004 ?30005 ??0088

770074

?70033 770097 7?0090 7?0095 ?70096 7?0094

??0098

?70095 ??0090 7?0095 ??009? 770095 7?0093

77007L

??00? 1

?40051

140052

Description

5B?9, Pre-Amp.

l2AX7, AF Amp.

6V6GT, 6X5GT,

Elect- Cap. .

Elect.

Elect. Cap. Elect. Cair. Elect. Cap. Elect. Cap.

Cap. Cerdmic Cap. Ceramic Cap. Ceramic, Cap. Ceramic, Cap. Ceramic'Tub.

(Used

Cap. Ceramic Tub.

(Used

Cap. Ceramic, Cap. Ceramic'Tub. Cap. Ceramic,

Ca!. Ceramic'Tub.

Cap. Cap. Ceramic,. Cap. Molded

Cap.

Volume Cont.

Tone Cont. & Switch.

Audio Output-Bias

Rectifier

40mfd

Cai.

+omio

,

90mfd

.

zOmia

with

,

Model

_@

Smfd

@)

25mfd

Tub. , ?5mmf.

Tub.

,4?0mmf.

.02mfd

otmta

.

,

907 only)

,

903

.02mfd

,4?0[mf.

02mfd

.

Ceramic,

,

.02mfd.

oo2mtd. @ fqOv.

Paper,.0lmfd

Molded Paper, . 01mfd

,

500K

Osc.

300V.

6)

roov.

@

300V.

Ca)

Zsv.

150V.

25V.

@

500V.

@

sOov.

@

?506mf.

1500mmf.

only)

500V.

@

500V.

€)

?5mJnf.

@

500K

lqa_

t

1070

+

_

1070

t

1Ple

I

1@o

t

1070

t

500V.

@400V.

@)400V.

Ref

No.

R3

R4

R5 R6 R? R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R18 R19 R20 R21 F.22 R23

P"24

R25

T1

T2 L1

M1 M2

sDl

.

Part

No.

740045

?6001 5

760001 ?60025

?60015 ?60015 ?60003 ?60052 ?60010 ?60010 ?6004? ?60010 ?6003?

76 0115

?60013 ?60054 ?60039 ?60040 760001

?6003? 760027 760304 ?00054 ?00055 700056

01 1301

?30006 011298

Description

Hum Balz

Resistor, Resistor, Resistor, Resistor. Resistor, Resistor, Resistor. Resistor. Resistor, Resistor, Resistor, Resistor. Resistor Resistor Resistor Resistor Resistor Resistor

Resistor Resistor Resistor

Resistor Power T

Output T

Osc. Coi

Play-Re<

Record I

PM Spea"

Lnce Cont.

220K0, l/2

lMeg.

8200, 1/2 Watt

2000 W.

,

L/2 Watt

,

390Kq L/2

220K4,

220KO, L/2 Watt

1.5Q 1/2

U2

Watt

W.

Watt

270Kq l/2 Watt

100K0. L/2 Watt 100K0,

2.2Ka, 100Kq 4?0Kq L/2 Watt

2?0Q. 1

47KA.

5.6

560Kq

2. 2

1

,

4?0Kq L/2

15Kq

1K, 5 Watt, W. W.

,

ransformer ransformer

L/2 Watt

Watt

L/2

Watt

lZ

Watt

U2

Meg.

L/2

Meg.

l/2 Watt

,

Watt

L/2 V'latt

Meg. l/2 Watt

Y'latt

r/2 Watt

I

:ord Switch ,evel Lamp,Neon,Type NE5

<er.

5

L/2"

Page 11

MECHAMCAL

PARTS LIST

Ref.

No.

1

2

3

4

5

6 7

I I

10

11

t2

13

t4

15

16 1? 18 19

20

2L 22 23 24 25 26 27

2B

29 30 31 32 33

Part

No. Description

4601

12

3 10144

100672

310147

10068?

4601

3 10144

Spring Retainer Reel Plate

Head Cover

Mechanism Cover

12

Spring Retainer Reel Plate Top Panel

3

10146

3 10146

011319 011319

600180

580043 011315 011316

420t04

460111

580 143

01 1236

100556

01 13 12

Rewind Control

Fast

Forward

Spindle Assembly Spindle Assembly

Screw,

Flat

6-32 x 5/16 Hex. Hd.

Washer, Pressure Pressure Pad Assembly Pressure

Spring Retainer

Cloth Washer Pressure

Head

Holder

Play-Record-Erase Head

Assembly

200288

100658

1307

01

4601 14 58014 1 600 1 13

580056 420105 580143 600243 200288

4201 10

01 13 14

Slide Button Tension Arm

Lifter Arm

Flywheel

FlatWasher..315x.01

Screw,

FIat Pressure Cloth Washer

Phillips

Slide Button Tension

Pressure Plate

8-32'x 5rl16 Hex. Hd.

Washer,

Flat Hd. M.

Arm Spring

Control Knob

Knob

x

Knob

5/16

x L/32

Control

.L42

Pad Bracket Assembly

Pad Spring

Roller

and PIug

& Set Screw Assembly

Retainer

188 x

.

Plate Return

?/6

S.

Spring

,

x

.032

6-32 x 1/4

& Stud Assembly

Ref.

No.

34

35 36 37

3B

39

40

4T

42 43 44

45

46 47 48 49 50

51 52 53

54 55 56 57

5B

59

60

61 62 63

64

Part

No.

01 1309

600111 46011? 420109 100660

0 1 1305

420106 420107

420tL'

01 1 329

580 1 39

4601 10

01 1328

200288 600243

01 132? 01 1308 01 1330 580 139

4601 10

01131?

13 1?

01

0Ll2s7

580020 460116 580056 60013? 490053 490053

01 13 99

01

1400

01 132

Description

Motorboard

Riveting

Hex. Hd. M.

Control

Record

Position

Idler

Anti

Spindle

Idler

Take

Shaft Retainer

Release

& Shaft

Slide

Rattle Spring

Arm Spring

Slide Spring Up Reel Arm Assembly

Fibre Washer

Hair Pin Clip

Take Slide Button

Up

Lever

Phillips FIat Hd.

Flywheel Control Shaft &

Feed

Fibre

Hair

Puliey Pulley &

&

Reel Arm Assembly

Washer

Pin Clip

Set Screw Assembly

&

Set

IdIer Roller Assembly

Washer, Cloth

Washer

"C"

Flat Washer,

Hex. Hd. M.

Take

Reel Drive Belt

Up

Feed Reel Drive Belt

Motor,

(Model

Motor,

(Model

Shock Mount

5

PuIIey

907)

Pulley & Plug Assembly

903)

Staking

S.

Assembly

6-32 x 1/4

,

&

Spring

Bracket

& Stud

Assembly

Spring

&

M.S.,

Capstan Shaft Assembly

Lever

Assembly

x 1/4

6-32

Assembly

Screw Assembly

Graphite Imp.

1BB x7/L6 x

S.

.

B-32 x

,

.032

1/4

& PIug Assembly

& Bracket Assembly