via this eBay listing
This appears to be the first post to feature DIGIAC.
"This was originally a logic trainer for education but I re-purposed it as a logic source to experiment with hybrid analog/digital modular music synthesizers. I'm selling it because I no longer have a modular synth to use it with. It has been rebuilt with all new electrolytic capacitors, I/O switches and blue LEDs. Included is an assortment of multicolor patch cables that I made up with silicone jacketed wire and gold plated 2.5mm banana plugs. Mounted in a wooden enclosure it is self contained with a built-in power supply & clock generator. Size is 19"W X 17.5 "H so it fits nicely in a 19" rack 10U space. I setup a demo video of a dual decade up counter.Logic modules included:16x JK flip flops, numeric keypad, multiple AND/NAND/OR/NOR/XOR gates, full adder, D/A converter, 1k bit addressable memory, comparator, one shot multivibrator, schmitt triggered buffer, 60Hz clock, dual seven segment decimal display, other miscellaneous functions including four I/O switches and a patchable 16 pin IC socket (nice if you want to add an additional IC or an interface cable).
Cosmetic condition: Fair to good with some scratches on the panel and damage to the wooden enclosure (see pictures).
Power source: 120VAC
Logic family: 7400 series 5V TTL"
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