Interconnections between modules and power supply
B,V,H,T,P
PRC-41 INTERNAL WIRING
3 - 3- 2018 / kb
RFI filters not shown
1
1H /57
Ω
3
µ
F
2
µ
F
4x
1N649
39
Q1 .
2N1486
Q2 .
2N1486
6,9
800 Hz
POWER SUPPLY
MODULE
+6.3V
6442
7554 7554
7077
+12.6V
+18.9V
1
8
16
17
Spectrum generator
RF Amplifier
6.8V, 10W
1N2970
100
HEATERS
K6
2x
25R
0.93A
4A
33uF
+26.5 V
Q1 .
2N1486
1N1358
16 cells 25 Ah
Silver-zinc alkaline
1.86V fully charged
1.30V end of discharge
33uF
+20V
TEL
M
IC
3
d
I
F
F
ir
st
&
2
n
d
I
F
15
8
2
9
C
D
D
3
5
1
Guard
3
9
6
7
6
10
1
2
1mH / 1
Ω
A
Tx
relays
Rx
+180V
Push
to talk
39
1k2
1k2
3
-6.8V
1N159
15
µ
F
5
7077
7554 7554
7077
1,2,3,6
7077
+180V
+180
Mod
4
7,9
26 V
6
10
MODULATOR
K3
K1
M
IC
AUDIO
6
2
7
1
5
4
4
5 8
IN
OUT
1mH/ 1
Ω
K4
0.5
Ω
OFF
TR/G
+24.5
T/R
6
3
19
15
-6.8
20
9
coax T/R
switch
3
K4
3
K3
K1
7
11
K3
K1
Auto
relay
12
squelch
50k
K4
9
5
470k
1
6
4
3
7
2
5
8
LIGHT
100
+av
5
14
470k
390
0.68u
0.47u
150
A2
A1 A3
20p
39p
to KY38
13
J1
J2
J3
1N916
B
H
F
+26.5 V
L
U
R
agc
+24
no agc
Remote on/off
J25
fi
lt
er
stud
BB-451/U
7
VOL
10
19 pole crypto plug
10 pole headset plug
both on front
J
C
S
N
A
K
K5
J
J16
140mA
1A
