DRAKE TR-4CW - Page 36

Table 5—3. (Continued)
DRAKE
REF Component FUNCTION
DES Type Transmitter Receiver
V8, V9, V10 | (3)6JB6 Matched | Power Amps. ie =
Vii 6BZ6 —= IF Amplifier
V12 12BA6 a IF Amplifier
V13
12AX7
AGC
AGC
v4 13DE7 AM Screen Modulator | =
V15 12BA6 IF Amplifier ae
V16 6GX6 9 MHz Xtal Oscillator BFO/Product Detector
V1I7 6AQ5A Anti Vox Audio Output
V18 12AX7 Mike Amplifier —
Vv19 6FQ7 VoxAmp/Relay | —
V20
OA2
Voltage
Regulator
|
Voltage
Regulator
Q1
2N5950
VFO
VFO
Q2 2N3563 VFO Buffer VFO Buffer
Q3
AT5059
Neon
Driver
Neon
Driver
Q4
2N3394
VFO
Shut
Off
VFO
Shut
Off
Q5
2N3877
=
Audio
Pre-Amp
D1
1N541
Balanced
Modulator
=
D2 IN541 Balanced Modulator ak
D3
1N541
Balanced
Modulator
=
D4
N54]
Balanced
Modulator
aaa
D5 1N4148 Vox Detector ——
D6
1N4148
Anti
Vox
Detector
ae
D7 1N4148 Vox Relay Speed Up =>
D8
IN714
Voltage
Regulator
Voltage
Regulator
D9 IN4148 Output Power Detector —
D10
1N4148
Anti
Vox
Detector
aS
D11
“al
1N4148
Output
Power
Detector
od
D12
1N4148
Meter
Control
ares
D13
1N4148
Transient
Suppressor
Transient
Suppressor
D4
1N4148
AGC
Isolation
|
—