DRAKE R-4A Spécifications télécharger pdf (Page 3)

VI Service Data

27

A, Removing Top Cover

27

B.

Removing Bottom Cover

27

C. Tube Replacement

27

D. Troubleshooting

27

VII Alignment Instructions

A.

B.

c.

D.

E.

F.

G.

H.

I.

J.

Fig.

#

1

Connecting R-4A to TR-4 Transceiver

Fig.

#

2

Viewing Angle Option

Fig.#

3

Rear View

Fig.

#

4

Crystal Freg. Chart

Fig.

#

5

Pre selector Chart

Fig.

#

6

Selectivity C urve s

Fig.

#

7

Notch Curves

Fig.

#

8

Block Dia gram

Fig.

#

9

Voltage Chart

Fig.

#

10

Resistance Chart

Fig.#

11

Top View

Fig.,

#

12

Bottom View

Fig.

#

13

Schematic Diagram

50KC Oscillator Alignment

50KC I. F. Alignment

Crystal Filter and Filter Match Transformer

Alignment

5595 KC Oscillator Alignment

Antenna RF, and Injection Circuit Alignment

100 KC Calibrator Alignment

V.F.O. Adjustment

Notch Filter Alignment

Passband

Tuner Alignment

Bias and S-meter adjustment

CHARTS AND ILLUSTRATIONS

32

32

32

33

33

34

35

35

35

35

36

8

8

12

18

19

23

23

26

28

29

30

31

37

-2-

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