Resistors
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16 x 470 1/4W (R1, R2, R4, R5, R6, R7, R9, R10, R11, R12, R14, R15, R16, R17,
R19, R20)
2 x 100K 1/4W (R3, R8, R13, R18)

Capacitors
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4 x 10uF 16V Electro (C1, C2, C3, C4)
2 x 470uF 63V Electro (C5, C6)
2 x 1uF MKT (C7, C8)

Semiconductors
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8 x 6N139
2 x 74HC00
4 x 74HC14

Misc
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4 x 10way Dual IDC Header (CONN3, CONN4, CONN5, CONN6)
1 x 26way Dual IDC Header (CONN2)
1 x 10way Single IDC Header (CONN7)
2 x 2 way PCB Mount Screw Terminal (CONN1, S9)
8 x 2way Single IDC Jumper (S1, S2, S3, S4, S5, S6, S7, S8)