DRAKE SPR-4 Specifikace stáhnout pdf (Strana 45)

TA-4 D.C. VOLTAGE CHART

Transistor Transceive Mode

Collector

Emitter

Base

Separate

-----

0.0

0.7

Transmitter

-----

0.0

0.7

Separate

0.05

0.0

0.6

Transmitter

11.1

0.0

Separate

12.2

11.5

Transmitter

0.02

11.9

10.6

Separate

0.0

0.6

Trans

mitter

0.02

0.0

0.6

Separate

12.2

0.0

0.01

Transmitter

12.0

2.3

3.0

MEASUREMENT CONDITIONS

Conditions

same

as the SPR-4 R .F . voltage chart and including

inter-connection with a

T4XB.

Measurements taken in SEPARATE mode were with T-4XB

trans-

mitting .

11 megohm VTVM

used .

43 -

1 2 ... 40 41 42 43 44 45 46 47 48 49 50 ... 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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