[sdiy] ALLISON VCA

[Steve Ridley]

> Allison also made some noise gates, (automatic VCAs) 

They also did the Kepex II gate, which was later made by
Valley People.  It used an Allison EGC101 module, which
was about the size of a DIL relay and is marked "US Pat. 
3,714,462".  There was also a 205 VCA module - just a
EGC101 on a 2" x 1" board with three opamps, three 
presets and a few passives, not encapsulated.  

>From around 1980...


Steve