via this auction
"Paia Dual Voltage Controlled Oscillator with AR envelope generator module for a frac-format modular synthesizer. See the manufacturer's website at for more information. This module packs a lot of functionality into a small package. You get two VCOs with many simultaneous waveform outputs and a cycling attack-release envelope generator."
"Paia Triple VCA/Mixer with a built in ADSR envelope generator. There is also apparently a ringmod feature, but I have never used it. It is explained in the included instruction manual. For more info, see the manufacturer's website at http://paia.com/proddetail.asp?prod=9710K&cat=12."
See the seller's other items for more including two Blacet modules.