The one in my Apple /// failed and I didn’t want to scavenge another Apple /// to get one. So designed a replacement. Why keep it to myself, though?
This product uses a PIC16F18875 and adapter circuit board to emulate the function of the original AY-5-3600 from General Instrument, also known as the AY-5-3600-PRO, KR-9600, KR-9600-PRO and other names. Depending on the variant you choose, the function map has been changed to send the binary codes your machine expects.
Fully designed and tested by Joe Strosnider, all key functions have been meticulously mapped, traced and tested. This Apple IIe and Apple III Keyboard Encoder replacement successfully passes the Apple /// Dealer Diagnostics test and Apple //e Diagnostics 2.1.