C1P sound board question

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lowrybt1
Posts: 212
Joined: Sun Mar 08, 2015 3:42 pm
Location: New York State

C1P sound board question

Post by lowrybt1 »

I've come across what looks to be a tone generator for the C1P: home made using two IC's: NE555N and UA555TC. There are four wires that look like they should connect to the 600 Board: red and black (power) and white and green. Anyone have thoughts on where the white and green leads might attach? Anyone have thoughts on whether this board/project was documented anywhere? I can only find documentation of a more sophisticated sound card produced by Jeff F.
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