Apple ][ Motherboard Parts
- .022M
- 104Z
- 47J
- 27µH
- 1N4148
- 2N3904
- MPS4258
- MPSA13
- 10Ω
- 27Ω
- 47Ω
- 100Ω
- 150Ω
- 200Ω
- 330Ω
- 1KΩ
- 1.5KΩ
- 2KΩ
- 2.7KΩ
- 12KΩ
- 47KΩ
- 220KΩ
- 3.3MΩ
- Res Array
- Color Trim
- 8-Pin
- 14-Pin
- 16-Pin
- 24-Pin
- 40-Pin
- 50-Pin
- 8T28
- 8T97
- 2513
- 25LS138
- 25LS251
- 74LS00
- 74LS02
- 74LS04
- 74LS08
- 74LS11
- 74LS20
- 74LS32
- 74LS51
- 74LS74
- 74LS138
- 74LS139
- 74LS151
- 74LS153
- 74LS161
- 74LS174
- 74LS194
- 74LS257
- 74LS283
- 74S86
- 74S175
- 74S195
- 741C
- 9334
- 74166
- 555
- 558
- ROMs
- Mem Sel
- DRAM
- Audio
- Power
- Video
- Alt Vid
- Speaker
- Crystal
74LS257 Quad 2-Input Multiplexer
Spec Sheet
AMD
From a photo of Rev. 0 board 1070 (A2S1-0800), near locations A8, B6 and B7. There are others near locations C12 and J1.
SN74LS257N, 7737M date code. Squared-off notch.
Total # on board: 5.
AMD
Parts for my Rev 0 replica.
SN74LS257N, 7652P date code. Squared-off notch. NOS.