DRAKE SPR-4 Spécifications télécharger pdf (Page 38)

5-NB

D.C. AND R.F. VOLTAGE CHART

Transistor

Q10

Q11

Q12

Q13

Q14

Q15

Q16

Drain

Collector

12.1

(31)

2.7

Q2 2.6

2.4

8.5

(3.4V)

3.4

3.1

(9.4)

1.8 (6.4)

Q5 12.3

(57)

1.0

12.3

(57)

1.4

Q7 9.6

(12.5) 2.7

9.3

(290)

2.7

Q9 9.0

1.25

11.5

8.2 (21)

4.4

(650)

0.0

11.8

5.5

12.3

3.85

12.3

3.3

6.2

0.0

2.7

2.4

Source

Emitter

Gate

1 Base

3.4

(4)

3.0

2.5

(3.8)

0.0

(480)

0.0

(480)

3.4

(12)

3.4

1.8

(8)

8.8

0.2

6.1

4.3

0.0

3.4

MEASUREMENT CONDITIONS

Conditions

same

as the SPR-4 R. F. voltage

chart

with the

accessory

switch in NB position.

11 megohm VTVM and Boonton Mode1

91CA

R.F. voltmeter used.

100:l

divider used on measurements above 500

mV.

Measurements in parenthesis are R.F. voltages.

36 -

1 2 ... 33 34 35 36 37 38 39 40 41 42 43 ... 65 66

Table of Contents 2
SSB , CW, and RTTY: 3
VIEWING ANGLE OPTIONS 6
Figure 1 6
AC , the 7
2.8.1 POWER 9
2.8.4 ANTI VOX and INJECTION 9
2.8.6 GROUND POST 9
2.8.8 AUDIO IN/OUT 9
, the crystal oscillator 16
minimum 21
OFF detent 24
, and speaker 27
state 27
chematic 28
beat 30
Transmitters 31
SO that the SPR-4 32
Q2 6.2(670 36
RY-4 CIRCUIT BOARD 42
Figure 15 43
Schematic 43
TA-4 PICTORAL WIRING DIAGRAM 44
Figure 18 46
Figure 19 47
TRANSISTOR 51
CONFIGURATION 51
Figure 21 51
TERMINAL(PC 52

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DRAKE SPR-4 Spécifications Page 38

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