ELCOM BAUER TRANSMITTERS FB-5V Manuale utente

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MODIFICATION

IN

STRUCTIONS

FOR

AD

DING S

OL

ID

STATE OSCILLATOR

TO

MODELS

FB-SV

a nd F

B-l

0J

P/N

098-

70

71

04

-1

5- 90

::========

6199

WAREHOUSE

WAY,

SACRAMENTO,

CA

95826, U.S.A. • (916) 381-3750 • TELEX 377-

331

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www.SteamPoweredRadio.Com

-·

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

-

PART

f'.IUMBER

QTY

UOM

DESCRIPTION

004-7070-02

1 1

EA

OSCILLATOR ASSEMBLY

065-

7060

--

·· ·

-·

·- - · · - -- 1 1

EA

. OSCILLATOR

BOARD

071-7060

1 1

EA

OSCILLATOR SCHEMATIC

101

-00

86

1 1

EA

CAP

DIP

MICA

220PF

500V

-

101-0091

··

--

-- ··- - -1 1

EA

CAP

DIP

MICA

330PF

500V

101-0152

1 1

EA

CAP

DIP

MICA 1

5PF

500V

101-0185

1 1

EA

USE

101-0091

101-0198

----

--

- - --

--

-- . -

--

- -1 - ----- 1 .

..

. EA ..

CAP

_

..

DIP

.

MICA

lOOOPF

500

109-0019

1

EA

CAP

VAR

2-34PF

EFJ193-10

110-0015

5 5

EA

CAP

DISC

.

01

MF

100V

TG

S10

. - 13

6-0024

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RES

FXD

330

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136-1023

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180

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1/4W

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1

36

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1 1

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270

OHM

1/4W

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620

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136-1032

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1/4W

5½

136-1039

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9K

1

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5%

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044

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1 1

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2 2

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2N4124

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1-49-0169

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NPN .RCA

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_________

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161-0012

1 1

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DIODE Z

12V

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1N4742A

161-0022

1 1

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DIODE Z

5.

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165-

0005

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SEE

SPEC

IFIED

.

--FREQUENCY.

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425-0029

2 2

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IC

FAIRCHILD

950PC

460-0011

1 1

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02

2~

7061

1 1

EA

HARDWARE

KIT

098-7071

. -

1 1

EA

INSTRUCTION

SHEET

--

105-0(:lt

--

---

·-

-;

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-1

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--·•-

-

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--

EA

--

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1N4746A

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BILL

OF

MATERIALS

0

OSCIL

LAT

OR

KIT

FOR

MODELS

FBSV

and

FBl0J

098-70

71

Pag

e 1

of

6

Pages

www.SteamPoweredRadio.Com

STEPS

TO

ADD

SOLID STATE OSCILLATOR

TO

MODELS

FBSV &

FBl0J

1.

Remove

crystals,

oscillator

tubes

and

tube

shields.

2.

With

the

chassis

in

the

drop

down

position

remove

the

osc$~lator

sub

-asse

mblies,

the

variable

capacitors

(Cl/CIA)

and

resistors

R4,

RS,

R6,

R7

and

R9.

3.

Mount

the

new

oscillators

using

the

hardware

provided

--

see

the

drawing

on

page

3

--

note

that

the

leads

should

be

toward

the

center.

4.

Install

the

ground

terminals

removed

earlier

at

the

positions

shown

in

the

schematic

on

page

4.

6'.,4'AY

5.

Connect

the~

wires

to

the

ground

terminals

as

shown.

6.

Connect

the

22K/1W

resistor

supplied

from

2

of

the

1st

amplifier

tube

to

the

ground

terminal.

7.

Connect

the

output

decoupling

resistors

to

2

of

the

1st

amplifier

tube.

8.

Connect

Ee

--

the

red

leads

--

to

SW6,

the

oscillator

se

lect

switch.

9.

Connect

the

18

volt

zener

diode

and

the

0.lMFD/l00V

capacitor

supplied

to

SW6

--

see

the

schemat

ic.

10.

Carefully

solder

all

connections

.

$1/

11.

Locate

R:tJf - -

the

osc

illator

supply

bleeder

resistor

--

and

set

the

tap

at

approximately

300

ohms.

(R~

is

located

behind

the

front

panel).

·

.SY

12.

Temporarily

short

Ml6

--

the

oscillator

current

meter

--

as

it

will

read

off

scale

with

the

new

oscillator.

13.

Connect

a

meter

from

the

supply

side

of

SW6

to

ground.

Turn

on

the

Tx

low

voltage

and

check

the

potential

at

this

point.

It

should

be

18

volts

--

ifAlower

raise

the

tap

on

R54.

f{4r

14.

Check

for

proper

operation

of

each

osci

llato

r

by

activating

SW6.

15.

In

normal

operation

the

oscillator

will

draw

about

30MA

- - a

resistor

can

be

shunted

across

Ml6,

the

oscillator

current

meter,

to

develop

a

useful

reference

level.

MODIFICATION

KIT

INSTRUCTIONS OSCILLATOR

KIT

FOR

MODELS

FBSV

and

FBl0J

098-7071

Page

2 of 6

Pages

www.SteamPoweredRadio.Com

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MODELS

FB5V

KIT

and

098-7071

FOR

FBlOJ

Page

3

of

6

Pages

www.SteamPoweredRadio.Com

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Page

4 o f 6

Pages

www.SteamPoweredRadio.Com

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KIT

FOR

MODELS

FBSV

and

FBlOJ

098

-

7071

Page

5

of

6

Pages

www.SteamPoweredRadio.Com

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SV

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098-7071

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ELCOM BAUER TRANSMITTERS FB-5V Manuale utente

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