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Q1
Q2
2N917
2N918
243 MHz
10k
10k
2k2
1k
2k2
Tuneable from 239 – 248 MHz
+19V
10k
1N231
2k2
Q4
20p
2N917
111.22 MHz
10k
.33
1k8
+6.2V
out
7
1
+26 V
3
6
33
2k2
+27V / 50mA
input
22uF
22k
0.5p
Q3
2p
2N918
2k2
1k
222.44 MHz
0.33
4k7
2p
+6.2V
doubler
47p
1N753A
2p
100k
6p
J1
12k
-1.85V
1500p
10
6
Q14
2N697
+19V
Q5
1N3027
3N35
1k
1k
15k
2k7
20.56 MHz
18p
10p
27p
4k7
1k5
3k3
22k
+19V
10k
4.7u
150k
Q10
2N916
1nF
2.2u
1N616
220R
Q12
2N718
220R
1N753A
6.2V
RT-695A / PRC-41 Guard Receiver (A7)
28 feb 2018 kb
Q6
Q7
3N35
3N35
10n
1k
1k
15k
15k
4k7
1n
18p
47
4k7
4k7
3k3
10n
10n
22k
22k
J2
1k
12k
Q11
R46
1N457
2N329
0.1uF
100k
12k
4k7
R52
3k3
R53
AGC
10k
10uF
Q9
Q8
3N35
3N35
squelch
1k
1k
10k
15k
15k
12k
18p
18p
18p
180p
4k7
4k7
3k3
3k3
3k3
10n
4k7
4k7
10n
10n
22k
Q15
2N329
1k
1uF
10k
2.2u
10k
Audio
15k
output
82k
Q13
2N706
2k2
15k
1N751A
9
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