AMPLIFIER-MODULATOR AM-3507/PRC-47 (A8A2)

TM 11-5820-509-35

Ref des

MCN effectivity

Description of change

A1CR18

2366

Added CR18, type 1N457.

A1C8 / A1C12

No record

Changed to 100 uF, was 47 uF.

A1Q1

No record

Changed to type 2N404, was type 2N422.

A1C26

4300

Polarity on silk-screen was reversed.

A1R85

4300

Added R85, 10K ohms.

AMPLIFIER-MODULATOR AM-3507/PRC-47 (A8A2)

A2C37

203

Added C37, 0.47 uF.

A2CR9 / A2CR10

203

Delete, was type 1N66.

A2CR9

203

Added CR9, type IN916.

A2R27

203

Delete, was 120 ohms.

A2R27

203

Added R27, 10OK ohms.

A2R33

203

Changed to 4,700, was 2,700 ohms.

A2R34

203

Changed to 100K, was 12K ohms.

A2C36

No record

Actual value selected for performance; nominal value 18 pF.

A2C16

422

Changed to 91 pF, was 68 pF.

A2R25

422

Changed to 2,700, was 2,200 ohms.

A2C12

525

Changed to 240 pF, was 0.05 uF.

A2C23

658

Changed to 1 uF, was 0.1 uF.

A2R17

805 and 211,305

R17: changed to 1,800, was 1K ohms.

A2RT1

410, 438, 453,

RT1: added, 3K ohms thermal

456, 468, 471,

472, 480, 481,

502, 517, 521,

523, 524.

A2C26

1166

Changed to 0.05 uF, was 0.1 uF.

A2R33

1654

Changed to 2,700, was 4,700 ohms.

A2R34

1654

Changed to 27K, was 100K ohms.

A2R35

1654

Changed to 47K, was 56K ohms.

A2R33

1646

Changed to 1.5K, was 2,700 (retrofit).

A2R34

1646

Changed to 10K, was 27K ohms (retrofit).

A2R35

1646

Changed to 68K, was 47K ohms (retrofit).

A2R41

1811

Changed to -watt film, was -watt composition.

A2R45

2068

Changed to 680, was 1,200 ohms.

A2R14

2182

Actual value selected for performance; nominal value 3,900

ohms.

A2CR7 / A2CR8

2314

Changed to type IN198, was type 1N67A.

A2R29

2314

Changed to 5,600, was 18K ohms.

A2R31

2314

Changed to 10K, was 18K ohms.

A2C10

2750

Changed to 150 vdcw, was 100 vdcw.

A2Q2 A2Q3 /

No record

Changed preferred type to 2N274, with Sig C-2N274 as

alternate.

A2Q4 / A2Q5

A2R34

No record

Changed to 27K, was IOK ohms.

A2K1

Plan 4838

Changed style; delete fasteners on preferred type; retain for

old type as alternate.

A2Q2 /A2Q31

No record

Delete Sig CG2N274 as alternate type.

A2Q4 / A2Q5

A2R17

No record

(Changed to 1.5K, was, 1,800 ohms.

SIGNAL DATA. TRANSLATOR CV-1377A/PRC-47 (A8A3)

A3C165

183

Changed to 10 pF. was 20 pF

A3C167

183

Changed to 220 pF. was 75 pF.

A3C168

183

Actual value selected for performance; nominal value 150 pF.

A3C169

183

Changed to 75 pF, was 220 pF.

A3C170

183

Changed to 220 pF, was 68 pF.

A3C42

Plan 199

changed to 190 pF, was.-,30 pF.

A3C146

433

Delete, was 390 pF.

A3C148

433

Added C148, 390 pF.

A3CR3 / A3CR8

No record

CR3 was CR3B, CRLS was C,R3A, each changed to type

1N198, was of FA2000.

A3Q11

500

Changed to type 2N708, was type 2N70:3.

A3CR1

506

Delete, was type 1N916.

A3R73/

506

Delete, each was 470K ohms.

A3R74 /

A3R75 /

Change 2 1-2