MATRIXSYNTH: Grove Audio GMS-294A VC Low Pass Filter 4 Pole Transistor Ladder Filter


Friday, December 28, 2012

Grove Audio GMS-294A VC Low Pass Filter 4 Pole Transistor Ladder Filter


via Grove Audio

"The GMS-294A VC Low Pass Filter is an accurate recreation of the Robert Moog-designed 4 pole transistor ladder filter. As much as possible, all original parts and matched pairs of 2n3392 transistors were used in the construction of the unit.

The module is implemented in a 1MU panel width and includes a complement of the original controls with the addition of a gain control on the CV in and a gain control for the audio input to the filter. An additional CV input is scaled for 1V/OCT. When the resonance control is turned up to near maximum, the filter will become a voltage controlled sine wave oscillator."

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