Custom Plan B Model 10 Polyphonic Envelope Module

This Model 10 is fully functional and in good condition.  It is a MK1 PCB Rev.2 module with no apparent Stinchcombe mods.

Binary-phase (rise/fall) analog envelope generator capable of reproducing logarithmic, exponential and linear contour transients ranging from 1 millsecond to over 20 minutes in duration.

Fully voltage controllable, the Model 10's output geometry is determined by four independent parameters: Rise, Fall, Timebase and Contour. It can operate as a one shot, requiring either a manual or external pulse to begin a single cycle, or it can self-cycle, configured as a programmable LFO with independent triangle, square and sawtooth outputs.

An external Cycle input affords a third option - a burst generator which will self-oscillate as long as this input is held high. A Triggering Switch also allows the user to lock the Model 10 into a permantent self cycling loop, or manually fire a single envelope in one-shot mode (down position is spring loaded).

Along with the timing controls, the Model 10 has a bipolar output Level attenuator for dynamic control of either a non-inverted (0 to 8 volts) positive EG, or an inverted (0 to - 8V) negative output. This feature, coupled with timing pulses fired at the end of each phase makes the M10 an ideal tool for sculpting complex envelopes from multiple units.