via this auction"Oberheim Voltage Controlled Filter This is a rather rare pedal. It has modes for either an Envelope Follower Filter or a Sample and Hold Filter Made by one of the Original Analog Synthesizer Companies and Tom Oberheim! From the designers of the Oberheim: SEM Oberheim 8 Voice OB-8 The Expander and Matrix 12 as well as the rest of the Matrix Series. Please note... the filter in this pedal is made from discrete transistors and op amps not like the later Oberheims which used custom Chips (like the CEM series)."














































