[sdiy] Re: [AH] CEM / SSM Chips used in non-synths? ~``~

[Travis Shire]

I nearly forgot.....all the early Williams videos (Defender, Joust,
Stargate, Robotron, etc) used a software synth complete with ring
modulation. A similar system was used in the Williams and Bally Pinballs as
far back as 1978.
Here's an idea......if anyone wants to reverse engineer the Williams soft
synth soundboard and design some sort of interface to be controlled from the
outside world, I'll provide one with schematics. The taker gets to keep it
in exchange for his trouble. Could be a great noisemaker. Here's the schemo
if anyone wants to check it out. Not all that much to it.
http://www.cityofberwyn.com/schematics/williams/JOUsnd.tiff

BTW, the Bally/Sente soundboard was actually OEM'd by Sequential. Says so
right on the pcb ;)