Roberts I92FT Operating Instructions Manual

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ROBERTS

MODET

I92FT

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W.

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The listing

of any available

replacement

part

herein

does not

constitute

in any

case a recommendation,

warranty or

guaranty

by Howard W. Sams & Co.,

Inc., as

to

the

quality

and suitability

of

such replacement

part.

The

numbers of these

parts

have

been

compiled from information

furnished

to Howard W.

Sams & Co.,

Inc.,

by

the manufacturers of the

particular

type

of

replacement

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TRADE

NAME

Roberts

Model

192FT

MANUFACTIIRER

Roberts

Electronics,

Inc.

,

5920 Bowcroft

Street,

Los

Angeles,

California

TYPE SET

AC Operated

STube-lTranslstor, Single

Track

Monaural

Tape

Recorder

(Units

are

available for

2-track monaural operation)

powER

suppl,y

I05-I20volts AC,

60Cycles RATING

60watts,

.58Amp'oUTVAC

(With

Deck)

35Watts, .33Amp

@ll7vAc

(Amp

Only)

part

listed. Reproduction or use, without express

permission,

of

editorial

or

pictorial

content, in

any

manner,

is

prohibited.

No

patent

liability is

assumed

with

respect to the use of the informa-

tion

contained

herein.

01963

Howard

W. Sams & Co.,

Inc.,

Indianapolis

6, Indiana.

Printed

in U.S. of America

(

m

{

O.
N)

N

TT

o

|-

I

m

F

(Jr

DATE 3-63 SET

622 FOLDER

I 5

FRtrOUENCY

RESPONSE:

40

to 15,000

cps

at ? l/2tps

*2

db; 40 to 9,b00

cps

at

3 3/4

ips

+ 3

db.

SIGNAL-

TO.

NOIS E RATIO:

55

db

below

recorded

"0"

Ievel.

WOW AND

FLUTTER:

Les s

than

0. 1B7o rms.

HEADS:

FuIl-track

erase

and

record/playback

in shielded

housing.

SPECIFICATIONS

PREPA

RING

FOR

OPERATION

OUTPUT:

6 watts undistorted.

REEL

SIZE:

?"

maximum

(up

to 2400

ft. of tape).

POWER

REQI]IREMENTS:

95

to 120

volts

AC, 60 cvcles,

50

watts.

SIZE:

15

3/4" xt4 t/2"

xI

t/2".

WEIGHT:

Approx.

28 lbs.

l.

t

Remove lid from carrying

Remove microphone and

storage

compartment

on

case.

case.

AC

supply

cord

from

left side of earrying

3. Make

certain

all controls are in

ttre

neutral

po-

sition.

FUNCTION

OF CONTROLS

0n-Off

Switch

When

the switch is

pushed

to the All-On

posi-

tion,

power

isturned

onto

theamplilier and

tapedeck.

When

the

switch

isin

the Amp-Off

position,

power

is

applied

to the

tape deck

only. The

Of{

position

turns

the

power

off

to

the entire unit.

Volume

Turning

this

control

elockwise

increases

the

volume

during

playback

and

the recording

level when

recording.

Tone

This control functions

in

playback

only. Turn-

ing

theeontrol

clockwise increases

thehigh

frequency

responae

and

turning

the control

counterclockwise

attenuates

the

high frequency

response.

PIay-Record

and

Record

Lock

This

is

a 3-position

eontrol:

Stop, Piay, and

Record.

Turning

this

control

elocknrise

from

the Stop

position,

places

the

unit in play.

Depressing

the

Record

Lock

and

turning

the

control

to the

Record

position

at

the

same

time,

places

the

unit in

Record"

N0TE:

This

control is

interlocked

with

the

Rewind-Forward

control.

It

must

be

in

the

Stop

position

before

the

Rewind-For-

ward

control

can

be

operated.

Rewind-Forward

Turning

this

control

to

the

left

places

the unit

in

the Rewind

model

to

the right

places

the

unit in

Forward

mode

of operation.

NOTE:

This

control

is interlocked

with

the

Play-Record

control.

It

must

be in

the

Stop

position

before

the

play-Record

con-

trol

can

be

operated.

Pause

When

this lever

is raised,

pressure

is

removed

from the

eapstan,

and

the take-up

reel

is

disengaged.

This

permits

spot

editing

and

momentary

stops.

PAGE

2

.:, {?'

ttf

i

()

Fig.

l.

TopVieur

of

Tape

Transport

Mechanism.

O

PERATI

NG

I

NSTRUCTIONS

3

Op

E9

'tr

tp

sd

tt

{

Threading the

Tape

1. Place

a

full

reel

of

tape

on the

supply

reel

spin-

dle

(27),

making certain

the

reel

slots

engage

the

protrusions

on the

pan.

Place an

empty

reel

on

the

take-up

spindle

(67),

again

makingcertain

the

slots engage

the

protrusions

on the

pan.

2.

Unwind

about

14

inches

of

tape from

the

supply

reel.

HoId a

section

of

tape

taut

and

insert into

the

tape

slot, making

sure the

dtrll-coated

side

faces

the rear

of the recorder.

3. Insert

the

free

end

of

the

tape

into

one

of

the

slots in

thehub

of the

take-up

reel. While hold-

ing

the

end

in

place,

rotate

the reel

to secure

the

tape and

take

up

any

slack.

To Make

a

Recording

I.

PIug

a microphone

into

the

Microphone

jack.

Place

the High Z iiltric-

Low Z Mic

switch

in

the

proper

position

to match

the

impedance

of

the

microphone.

2.

Plaee

the

Pause lever in

the

Up

positionl

de-

press

the Record

Loek

button and at

the same

time

rotate the

Play-Record

control

to the

Record

position.

3.

Preset

therecording

level

by

adjusting

the

Vol-

ume

control until

the

indicator

goes

up to

the

red

portion

of the

scale

but

does not

enter

the

red

portion

except

on

loud

passages.

CAUTION:

Do not

eonnect

a

speaker

or other

low

impedance

load

to the

Output

jack

while

making a

recording.

To

Play

Back

a

Tape

1.

Thread

the

tape as

described

under

"Threading

the Tape".

2.

Turn

the

unit

on

and

allow

a

few

seconds

for it

to

warm

up.

3.

Turn

the

Play-Record

control

to

play.

4.

Adjust

the

volume

and

tone

to

the desired

list-

ening

level.

Speed Change

To

change

the tape

speed from 7

L/

Z

to B B/

4

ips,

remove

the

thumbscrew

and

bushing

from

the

capstan.

When

the

bushing

is

not

being used,

store

it

on

the

bushing

post.

lndex

Counter

Aftera

tape

is

threadedon

the

recorder,

set the

index

counter

to

"000".

The

index

numbers

ean

then

at

o

F

(f

m

7

J

(lr

PAGE

3

-

------.r

Fig.

2.

Bottom

View of Tape Transport

Mechanisfn.

be

noted at the begindng

of each

selection

for

future

Efasing a Tape

reference'

To eraae

a tape

wlthout

putting

a nev recording

EXtefnal

Speakef

on

it' turn

the Volume control to minlmum

and the

Play-Record

control to

Record"

An external

speaker

may be

plugged

into

the

"B

ohm out"

jack.

ihe

inte"nai speat e-r-vitl

be dis-

To

Record

from a High Signal

Level Source

connected

r hen using

an external apeaker.

To record

from a radio, TV

receiver, or

tuner,

plug

the signal

aource

lnto

the

Rad-Phono

jack.

Use

the

same

recordlng

procedure

aB

de8cribed

under

"To

Record llom

a Microphone".

D ISASSEM BLY

To

Remove Tape Transprt

f rom Case

t.

ffil:l""S:

lour acreq's

holdins the transport

l.

Remove the

two

acren,a

in

the splndle

paDs

(one

ln

each

pan).

8. Unplw

all connectlona

to the tape

transport

and

2.

Remove the tno acrews

holding the dreas

plate

spealrer

and

lift the tranaport

from the case'

and remove the dress

plate.

-

9.

Toereasaemble,

reverae

the foregoing

pro€ed-

3.

Removeone screwon

the rlght side of the

eacut-

cheon and lhe

7 r/2

tps

bustrlng

from the

left

To

Remove

the

Amplifier

from

Case

elde'

I.

Remove four screwa

holdlng

amplifier

and es-

4. Remove the

pressure

roller.

cutcheon

to the ease.

5.

Remove the

Play-Record

and

Rewind-Forward

2. Unplug

all connecting

cablea.

knoba'

3.

Lut the

ampllfier

from the caae.

6'

Remove the eacutcheon'

4. To

reassemble,

revelse

the foregoing

proced-

!e.

PAGE

4