Esquemático do computador TK3000 redesenhado no KICAD a partir do esquemático original da Microdigital cujo scan encontrei no site Datassette (https://datassette.org/tech/apple-ii/esquema-eletrico-do-tk3000)
- C1: 6502
- E15: Z80A
- E1, E2: LS244
- F4, F6(?): ROM
- G1: PAL16R8A
- H4: custom
- H6: custom
- H10: LS245
- H9, H11: LS374
- H12: LS259
- C13: ?
- H13: LS365
- E13: 2716
- F12, F13: 2114
- E10, E3/E9?: OR GATES
- F9: XOR? GATES
- F10: NAND GATES
- F7: 2764 ROM
- H8: LS166
- F2: NOR GATES
- E11: FLIP FLOPS 74LS74 ?
- E7: LS251
- E8: NZ858?
- E4, E5, E6: 74LS138
- G1: ?
- H1: ?
- F1: BUFFER?
- J7, J8, J9, J10, J11, J12, J13, J14: RAM