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The SN76477

Peculiar Parts, the series

The SN76477
I was cleaning up the basement and found a nice collection of old papers, one of which was an extensive printed manual for the SN76477 sound chip [1]. It was written using a typewriter and hand drawn illustrations which is something you just don’t see today. I still have the SN76477 chip that I used to make a fantastic rumbling vibrato sound effect in a Ghostbusters costume Proton Pack.
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