
Apple II Prototype
tebl/Apple2-Prototyping-Card
Prototyping card for developing new hardware for legacy Apple ][, //e and //gs computers.

Prototyping card for developing new hardware for legacy Apple ][, //e and //gs computers.
Apple II Prototype is an open-source printed circuit board by tebl, from the tebl/Apple2-Prototyping-Card repository on GitHub. It is a 2-layer board of 249.6 × 78.7 mm with 99 parts on 50 nets, routed with 125 tracks and 0 vias.
It belongs with the retro computing and games boards of this library.
Several versions of the prototyping boards are available that can be used with the Apple ][, //e and //gs, with size and cost being the main difference between them at this point in time. The smaller one should fit within the cheapest option for most Chinese PCB fabrication services, and so would be the perfect place to start when experimenting with the easier stuff. The fullsize version should give all the space you need for most projects. For more general information, see the main project page.

The supplied KiCad files should be sufficient as both a schematic and as a starting point for ordering PCBs, the schematic is also available in PDF-format. You can refer to the BOM below for a list of suggested components to use, part numbers in parenthesis are optional and is not required.
Given that this is a prototyping card, it's completely up to you to decide what actually goes on the card - permanently, or temporarily when you've found the need to refine your current designs. The BOM therefore consists only of the PCB itself, but I've kept this section in keeping with the structure used with my other various projects.
| Reference | Item | Count |
|---|---|---|
| PCB | Fabricate yourself using KiCad files | 1 |
If you would like to have a copy of one or more modules, what you'll need to do is zip up the contents of the export directory for each module and give that to your favourite PCB fabrication plant. Personally I prefer to use PCBWay, each module has been designed to fit inside the 5$ dimensions. Use the link provided when signing up to support this project!
| Qty | Value | Footprint | References |
|---|---|---|---|
| 50 | Prototype_26 | Prototype:prototype_26 | P1, P2, P3, P4, P36, P37, P38, P39, P40, P41, P42, P43, P44, P45, P46, P47 +34 |
| 31 | Prototype_23 | Prototype:prototype_23 | P10, P11, P12, P13, P14, P15, P16, P17, P18, P19, P20, P21, P22, P23, P24, P25 +15 |
| 4 | Prototype_21 | Prototype:prototype_21 | P94, P95, P96, P97 |
| 4 | Prototype_22 | Prototype:prototype_22 | P90, P91, P92, P93 |
| 4 | Prototype_24 | Prototype:prototype_24 | P61, P62, P83, P85 |
| 4 | Prototype_25 | Prototype:prototype_25 | P63, P64, P65, P84 |
| 1 | A2_BUS | Apple2_bus:BUS_A2 | BUS1 |
| 1 | Breakout | Breakout:Breakout | J1 |

tebl/Apple2-Prototyping-Card
Prototyping card for developing new hardware for legacy Apple ][, //e and //gs computers.


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99 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the tebl/Apple2-Prototyping-Card repository on GitHub, at the commit this page was made from: the board is fullsize/Apple II Prototype.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask tebl before reusing the design.