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WLjm

HEWLETT

m.EM

PACKARD

OPERATING

AND

SERVICE

MANUAL

8447A

AMPLIFIER/

DUAL

AMPLIFIER

1—400

MHz

SERIAL

PREFIX:

955

This

manual

applies

directly

to

HP

Model

8447A

Amplifier

and

Model

8447A-001

Dual

Amplifier

having

serial

prefix

number

955.

SERIAL

PREFIXES

NOT

LISTED

For

serial

prefixes

above

955,

a

“Manual

Changes”

sheet

is

included

with

this

manual.

©HEWLETT-PACKARD

COMPANY

1970

1400

FOUNTAIN

GROVE

PARKWAY,

SANTA

ROSA,

CALIFORNIA,

95404,

U.S.A.

MANUAL

PART

NUMBER

08447-90003

Printed:

APRIL

1970

p

MANUAL

IDENTIFICATION

-|

Model

Number:

8447A

‘Date

Printed:

APRIL

1970

Part

Number:

08447-90003

This

supplement

contains

important

information

for

correcting

manual

errors

and

for

adapting

the

manual

to

instruments

containing

improvements

made

after

the

printing

of

the

manual.

To

use

this

supplement:

Make

all

ERRATA

corrections

Make

ail

appropriate

serial

number

related

changes

indicated

in

the

tables

below.

_

Serial

Prefix

or

Number.

1145A0G356A

thru

-01517,

-01566,

and

4)1571

.

Make

Manual

Changes

Spriul

Pr^fiv

nf

MumKut

1145

A01518

thru

-01565,4)1567

thru

4)1570,4)1572

thru

-01575,

and

1529A

prefix

1,2

1616A

1,2,3

1644A

1,2,3,4

1937A

1,2,3,4,5

2123

A

1,2,3,4,5,6

2123A06657

and

2439A

1,2,3,4,5,6,7

NEW

ITEM

Manual

change

supplements

are

revised

as

often

as

necessary

to

keep

manuals

as

current

and

accurate

as

possible.

Hewlett-Packard

recommends

that

you

periodically

request

the

latest

edition

of

this

supplement.

Free

copies

are

available

from

all

HP

offices.

When

requesting

copies

quote

the

manual

identification

information

from

your

supplement,

or

the

model

number

and

print

date

from

the

title

page

of

the

manual.

Printed

in

U.S.A.

ERRATA

Add

to

front

of

manual

SAFETY

CONSIDERATIONS

supplied

in

this

Manual

Changes

supplement.

Page

1-1,

Table

1-1:

Add

Reverse

Isolation:

>30

dB.

Page

3-1,

Paragraph

3-7:

Add

the

following

caution

before

the

first

sentence

in

step

c:

CAUTION

The

input

to

the

HP

8447A

amplifier

is

very

susceptible

to

damage

from

electrostatic

discharge.

Before

connecting

any

coaxial

cable

to

the

input

jack

of

the

amplifier,

make

certain

that

static

electricity

buildup

in

the

cable

is

completely

discharged.

Page

4-1,

Paragraph

4-5:

Add

the

following

caution:

CAUTION

The

input

to

the

HP

8447A

anplifier

is

very

susceptible

to

damage

from

electrostatic

discharge.

Before

connecting

any

coaxial

cable

to

the

input

jack

of

the

amplifier,

make

certain

that

static

electricity

buildup

in

the

cable

is

completely

discharged.

Page

4-2,

Paragraph

4-6:

Add

10

dB

attenuator

(2

required)

...

HP

8491

Opt.

010

to

the

equipment

list.

Change

specification

for

"Output

Level

(Compression)"

to

>+7

dBm

at

1-dB

compression

point.

Page

4-3,

Paragraph

4-6:

Change

step

6

to

read

as

follows:

To

check

flatness,

set

the

signal

level

at

Channel

A

to

-30

dBm.

Connect

a

10

dB

attenuator

to

each

tee,

between

the

tee

and

the

adapter.

Note

the

level

difference

between

Channel

A

and

Channel

B

as

the

generator

frequency

is

tuned

from

10

MHz

to

400

MHz.

Keep

the

input

level

to

the

amplifier

(CHANNEL

A)

constant

and

note

the

variation

in

Channel

B.

Channel

B

should

change

>1

dB

(+-0.5

dB).

Page

4-5,

Paragraph

4-7:

Under

SPECIFICATION,

change

"parts"

to

"ports".

Page

4-10,

PERFORMANCE

TESTS:

Add

performance

test

4-10,

Reverse

Isolation,

supplied

in

this

Manual

Changes

supplement.

Page

4-11,

Table

4-1:

Add

Reverse

Isolation

information

to

Performance

Test

Record,

supplied

in

this

Manual

Changes

supplement.

Page

5-2,

Paragraph

5-8:

Change

"Figure

4-1"

to

"Figure

5-1"

in

step

1.

Page

6-2,

Table

6-2:

Change

C2

to

HP

Part

Number

0160-2049,

Check

Digit

1,

CAPACITOR-FDTHRU

5000PF

+80

-20%

500V.

Change

A1CR1-4

to

HP

Part

Number

1901-0743,

Check

Digit

1,

DI0DE:PWR

RECT

IN4004

400VIA

DO-41.

'

2

Page

6-3,

Table

6-2:

Change

U1

and

U2

to

HP

Part

Number

5086-7032,

Check

Digit

5.

Change

HP

Part

Number

1200-0043

to

HP

Part

Number

0340-0664,

Check

Digit

4,

INSULATOR-XSTR

T0-3.

Page

6-4,

Table

6-2:

Change

Reference

Designation

8

to

HP

Part

Number

08447-00054,

Check

Digit

3,

PANEL:FRONT

STANDARD*

Add

Reference

Designation

3,

HP

Part

Number

08447-00055,

Check

Digit

6,

PANEL

:

F

R0NT

OPTION

001.

Page

6—5,

Table

6—3:

Change

HP

Part

Number

1820-0169

to

HP

Part

Number

5086-7032,

Check

Digit

9.

Change

HP

Part

Number

1901-0159

to

HP

Part

Number

1901-0743,

Check

Digit

1,

DIODE:PWR

RECT

IN4004

400VIA

D-41.

Change

HP

Part

Number

08447-00001

to

HP

Part

Number

08447-00054,

Check

Digit

5,

PANEL:FRONT

STANDARD.

Add

HP

Part

Number

08447-00055,

Check

Digit

6,

PANEL:FR0NT

OPTION

001.

Change

HP

Part

Number

1200-0043

to

HP

Part

Number

0340-0664,

Check

Digit

4,

INSULATOR-XSTR

T0-3.

►

P

a

ge

8-9,

Figure

8-3:

Replace

Figure

8-3

with

the

new

Figure

8-3

included

in

this

Manual

Changes

supplement.

Page

8-9,

Figure

8-4:

Change

wire

colors

of

T1

power

transformer

primary

windings

as

follows:

90

(top

winding)

to

902,

904

to

905,

and

905

to

904.

Delete

line

connecting

CR8

and

C4.

CHANGE

1

Page

6-4,

Table

6-2:

Change

Cabinet

Parts

Lists

to

read

as

supplied

in

this

Manual

Changes

supplement.

CHANGE

2

Page

1-1,

Table

1-1:

Change

the

following

specifications:

Output

Level:

>+6

dBm

at

1-dB

compression

point.

Distortion:

Harmonics

at

least

32

dB

down

at

output

levels

up

to

0

dBm.

Page

4-2,

Paragraph

4-6:

Change

specification

for

"Output

Level

(Compression)"

to

>+6

dBm

at

1-dB

compression

point.

Page

4-3,

Paragraph

4-6,

Step

5:

Change

"+7

dBm"

to

"+6

dBm"

in

first

line.

Page

4-8,

Paragraph

4-8:

Change

specification

to

read:

Harmonics

at

least

32

dB

down

at

output

levels

up

to

0

dBm.

In

step

3,

change

35

dB

to

32

dB

(two

places).

Page

4-11,

Paragraph

4-8:

Change

limit

under

"Min."

to

-32.

CHANGE

3

Page

6—2,

Table

6—2:

Change*A1CR9

to

HP

Part

Number

1884-0073,

Check

Digit

2,

THYRIST0R-SCR

T0-5

VRRM=100.'

3

Add

A1R13,

HP

Part

Number

0757-0401,

Check

Digit

0,

R:FXD

MET

FLM

100

OHM

U

1/8W.

Page

8-9,

Figure

8-4:

Add

RIB,

100

ohms,

from

junction

of

CR8

anode/CR9

gate

to

ground.

CHANGE

4

Page

6-3,

Table

6-2:

Change

SI

to

HP

Part

Number

3101-2195,

Check

Digit

7,

SWITCH:PUSHBUTTON

DPST

(recommended

replacement).

Change

XF1

to

HP

Part

Number

2110-0470,

Check

Digit

5,

FUSEHOLDER

BODY.

Add

the

following

HP

Part

Numbers

and

description:

2110-0465,

Check

Digit

8,

FUSEHOLDER

CAP.

2110-0467,

Check

Digit

0,

FUSEHOLDER

NUT:

HEX.

1400-0090,

Check

Digit

9,

WASHER:FLAT

NEOPRENE.

Delete

HP

Part

Number

2950-0038,

Page

6-4,

Figure

6-1:

Change

Reference

Designation

6

to

HP

Part

Number

08447-00050,

Check

Digit

1.

Page

8-9,

Figure

8-4:

Change

SI

ON/OFF

switch

as

shown

in

the

partial

schematic

supplied

in

this

Manual

Changes

supplement.

CHANGE

5

Page

6-3,

Table

6-2:

Change

XF1

HP

Part

Number

to

2110-0564,

Check

Digit

8.

Change

FUSEHOLDER

CAP

HP

Part

Humber

to

2110-0565,

Check

Digit

9.

Change

FUSEHOLDER

NUT

HP

Part

Number

to

2110-0569,

Check

Digit

3.

Delete

FUSEHOLDER

WASHER

entry.

CHANGE

6

Page

6-3,

Table

6-2:

Change

U1

and

U2

to

HP

Part

Number

5086-7356,

Check

Digit

0.

Change

W2

to

HP

Part

Number

08447-20006,

Check

Digit

9,

CABLE

ASSEMBLY:

IN

BNC.

Change

W3

to

HP

Part

Number

08447-20007,

Check

Digit

0,

CABLE

ASSEMBLY:

OUT

BNC.

Change

W4

to

HP

Part

Number

08447-20008,

Check

Digit

1,

CABLE

ASSEMBLY:

IN

BNC.

Change

W5

to

HP

Part

Number

08447-20009,

Check

Digit

2,

CABLE

ASSEMBLY:

OUT

BNC.

Add

HP

Part

Number

08447-00028,

Check

Digit

3,

BRACKET:

SUPPORT

AMPLIFIER

(OPTION

001

)

.

Page

6-5,

Table

6-3:

Change

HP

Part

Number

1820-0169

(or

5086-7032,

see

errata)

to

HP

Part

Number

5086-

7356,

Check

Digit

0.

Page

6-6,

Table

6-3:

Delete

HP

Part

Number

08447-60003.

Add

W2,

HP

Part

Number

08447-20006,

Check

Digit

9,

CABLE

ASSEMBLY:

IN

BNC.

Add

W3,

HP

Part

Number

08447-20007,

Check

Digit

0,

CABLE

ASSEMBLY:

OUT

BNC.

Add

W4,

HP

Part

Number

08447-20008,

Check

Digit

1,

CABLE

ASSEMBLY:

IN

BNC.

Add

W5,

HP

Part

Number

08447-20009,

Check

Digit

2,

CABLE

ASSEMBLY:

OUT

BNC.

Add

HP

Part

Number

08447-00028,

Check

Digit

3,

BRACKET:

SUPPORT

AMPLIFIER

(OPTION

001

)

.

CHANGE

7

Page

1-1,

Table

1-1:

Change

the

Gain

specification

for

the

instrument

from

20

dB

+-0.5

dB

to

20

dB

-t—1.0

dB.

4

Page

4-2,

Paragraph

4-6:

At

the

top

of

page

4-2,

change

the

specification

for

the

Gain

from

20

dB

+-0.5

dB

to

20

dB

+-0.1

dB.

Page

4-3,

Paragraph

4-6:

Page

4-11/4-12,

Table

4-1:

In

step

4,

paragraph

4-6,

change

the

tolerance

for

recording

the

data

from:

+19.5._+20.5

dB

to:

+19.0_+21.0

dB

5