via this auction
"These are extremely hard to find. PAIA 8780 Digital to Analog converter mated with TWO sets of 8781 QUASH (QUAD ADRESSABLE SAMPLE AND HOLD) modules gives you EIGHT sample and holds. These were used with special software and a computer like the Paia 8700 (sorry I am keeping mine) or a Apple II+ or PET. This enabled you to do tricks like Polyphony, weird effects etc-see Google. You could do 8 "Polytonic" voices with this setup. You can have up to 4 QuaSH tied together for 16 voices.
FROM.MATRIXSYNTH [posted here]:
"The QuASH provides four computer addressable S/H circuits in a single module. It features adjustable glide rate for each channel (selected by computer control), individual trigger “gates” and an individual modulation input for each channel. On-board address decoding allows up to four QuASH modules to be bussed together in a single system for 16 voice “polytonic” synthesis! This module is intended for the true PAiA fanatic that wants a complete and original computer controlled system from the glory days of the analog world: the 1970’s"
You can find a video featuring the QuaSH here, and the D/A here. See the PAiA label at the bottom of an PAiA post for more, or search for modules on the top right of the site.
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