
via Reed: "I thought I'd post a picture of my favorite module lately, Mark Verbos' Model 254 Quad Voltage Processor (far right). It is basically 2 Buchla Model 257's (center) with an extra voltage input, in the tradition of the 256 (far left). The processor is clocked at a much higher rate than the 257, which gives it an advantage in certain situations dealing with pulses and older modules. Sadly, it doesn't have the stenciled-on math equation that makes the Buchla 257 so enticing yet intimidating."
click the image
Update: I added a Verbos label for the site. Click on it for more by Mark Verbos.