| part # | Quantity | Description | Digikey part number | |
| U2 | 1 | 68hc705p | ||
| CR1 | 1 | 4MHz crystal | X006 | |
| C6,C7 | 2 | 22pF | 1014PHCT | |
| C1,C2,C3,C4,C9 | 5 | 0.1uF | P2053 | |
| C8 | 1 | 1uF | P2073 | |
| C5,C11,C12 | 3 | 0.01uF | P4582 | |
| C10 | 1 | .33uF | P4669ND | |
| U1 | 1 | MAX202 IC | MAX202CPE | |
| U5 | 1 | 74hc164 | MM74HC164N or 296-2097-5-ND | |
| U6 | 1 | 7805 TO-220 | NJM78M05FA | |
| U3 | 1 | dual opto isolator | PS2502-2NEC-ND or PS2501-2NEC-ND | |
| U3 alternate part | 2 | 4 pin opto isolator | H11A817CQT-ND | |
| U4 | 1 | 1A bridge | DB101MS-ND | |
| Q1, Q2,Q3 | 3 | 2N3904 | 2N3904DICT | |
| D3MD4 | 2 | 1N4148 | 1N4148MSCT-ND | |
| K1,K2 | 2 | SPDT 5V RELAY | Z773 | |
| R5 | 1 | 560 | 560EBK | |
| R3,R4,R6,R7,R8 | 5 | 2.7k | 2.7KEBK | |
| R1,R2,R9 | 3 | 56K | 56KEBK | |
| R12 | 1 | 1M | 1.0MEBK | |
| P9 | 1 | power connector | CP-202A | |
| U2 | 1 | 28 pin DIP | AE8928 | |
| U1 | 1 | 16 pin DIP | AE8916 | |
| U3 | 1 | 8 pin DIP | AE8908 | |
| U5 | 1 | 14 pin DIP | AE8914 | |
| P11 | 1 | 9 pin female | A2100 | |
| P10 | 1 | 9 pin male | A2096 | |
| P12,P13 | 2 | 25 pin female | A2102 | |
| P1,P2,P5,P6,P7,P8 | 6 | stereo jack | CP-3504-ND | |
| S1 | 1 | L/R manual switch | EG1903 | |
| 100K linear pot | ||||
| audio output xformer |