| 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) |