[vcf-midatlantic] Apple keyboards [was chording keyboards]
jeffrey.scott.jonas at gmail.com
Sun Dec 1 02:32:50 EST 2019
Many thanks to Jonathan Gevaryahu for his reply.
Sean Riddle's https://seanriddle.com/kr3600.html
is a wealth of information, including complete chip specs.
Long ago, I did the opposite.
I wired up an external keyboard to match the Apple ][ matrix
and wired it up in parallel to the internal keyboard,
rather than fix the broken keys.
I worked briefly at General Instruments' Hicksville facility in 1982
so I have an affection for their chips.
They were the heart of so many video games and speech synthesis.
-- jeff jonas
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