Component Designator | Number of same value | Value | |
C1,C3,C7,C9,C19 |
5 |
.1uF (ceramic) | |
C2 |
1 |
100uF (16v electrolytic) | |
C4,C8 |
0 |
not used | |
C5 |
1 |
220pF (mica or metallized film) | |
C6 |
1 |
2200pF (mica or metallized film) | |
C10 |
1 |
.001uF (2% polypropylene) | |
C12,C13 |
2 |
.01uF (metallized film) | |
C14,C15 |
2 |
.001uF (metallized film) | |
C17 |
1 |
.05uF (ceramic) | |
C18 |
1 |
270uF (16v electrolytic) | |
C11,C16,C20 |
3 |
1uF (35v tantalum) | |
D1 (photodiode) |
1 |
API PDB-C142 (Digikey PDB-C142-nd) | |
D2 |
1 |
1N914 | |
J1 |
1 |
1/8" Stereo phone jack | |
L1 |
1 |
4.7 mH (molded choke) | |
Q1 |
1 |
2N2222 | |
R1,R12 |
2 |
1k (resistors 5% 1/4-w except where ind.) | |
R2 |
1 |
470 Ohms | |
R3 |
0 |
not used | |
R4 |
1 |
2.2k | |
R5 |
1 |
820k | |
R6,R10 |
2 |
33k | |
R7,R8,R15,R16 |
4 |
100k | |
R9 |
1 |
9.53k (1% 1/4-watt) | |
R11,R13,R14,R19,R20 |
5 |
10k | |
R17 |
1 |
39k | |
R18 |
1 |
10 Ohms | |
Rsquelch |
1 |
1M | |
U1 |
1 |
LF347 (Quad JFET opamp) | |
U2 |
1 |
CD4069 (Hex CMOS inverter) | |
U3 |
1 |
CD4013 (Dual CMOS D flip-flop | |
U4 |
1 |
LM386-4 (Audio amp.) | |
VR1 (Volume) |
1 |
10k (audio taper) |