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301 B
301 B
Macintosh Classic II FPU card
Add an FPU to your Macintosh Classic II. Switchable clock source between the system clock (16 MHz) and a crystal oscillator on the board (40 MHz should generally work).
References
The MC68000 KiCAD library from https://dev.sigpipe.me/DashieElectronics/Jackalope