Apple-2-HW/unified_retro_keyboard
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2 Commits

Author SHA1 Message Date
Dave
5fa0f80b4e Add OSI interface schematic 
Provides a keyboard interface to interface with OSI computers.  Equivalent to an
OSI 542C.

- Includes sound circuits

- Includes RESET delay circuit

- SHIFT LOCK can be mechanical push-on/push-off or soft toggle, selectable by
jumper.

- Provide SHIFT LOCK LED output.
 2020-04-21 14:30:59 -05:00
Dave
784805adc7 first commit 2019-12-12 14:46:29 -06:00