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Altair-Duino expansion boards
Background
88-ACR card
This was once available in kit form at https://adwaterandstir.com/product-category/parts/, but it has recently been unlisted from the store. Instead, we will have to source the parts ourselves based on the source files. Easiest to obtain is the PCB, which can be simply ordered from OSHPark1). A BOM is included below (carefully note package dimensions!).
| Part | Quantity needed | |
|---|---|---|
| 22 pF, 2.54 mm | 2 | DigiKey |
| 22 nF, 2.54 mm | 1 | DigiKey |
| 100 nF, 2.54 mm | 6 | DigiKey |
| 150 R, 1/4 W | 1 | DigiKey |
| 1 k, 1/4 W | 1 | DigiKey |
| 2.2 k, 1/4 W | 1 | DigiKey |
| 10 k, 1/4 W | 3 | DigiKey |
| 47 k, 1/4 W | 1 | DigiKey |
| 100 k, 1/4 W | 1 | DigiKey |
| 1 M, 1/4 W | 1 | DigiKey |
| green LED, 2.54 mm | 1 | DigiKey |
| ATMega328P-PU, DIP-28 | 1 | DigiKey |
| 74HC126, DIP-14 | 1 | DigiKey |
| CD4068BE, DIP-14 | 1 | DigiKey |
| 74HC00, DIP-14 | 1 | DigiKey |
| 74HC04, DIP-14 | 1 | DigiKey |
| LM358, DIP-8 | 1 | already in stock |
| 8 MHz crystal, HC-49S 2) | 1 | |
| 3.5 mm audio jack | 2 | AliExpress |
| 1×3 pin header | 7 | DigiKey |
| DIP-8 socket | 1 | DigiKey |
| DIP-14 socket | 4 | DigiKey |
| DIP-28 socket | 1 | DigiKey |
| SBH11-PBPC-D13-RA-BK | 1 | DigiKey |
SPI/I2C card
They probably didn't have these back in the day.