FM Operator (TZFM / TZPM Operator)

The FM Ogre is an expanded implementation of a Chowning FM Operator. It defaults to output a sine wave, but the sine can be thru-zero FMed or PMed (phase modulated) from 0 through both positive and negative frequencies and phase spaces. The feedback control allows self-modulation without patchcords. It obeys both 1V/octave and linear FM.

The default waveform can be overridden to allow through-zero FM and PM of any input signal including acoustic instruments or human voices; the "SYNC" input allows freezing of the input sample for pitch-shifted and phase modulated '"stutter" and "scrollback" effects.

The module uses a DSPIC microprocessor, has better-than-CD-quality dual 16 bit DACs operated at ~90 KHz, and is field-reprogrammable with a MicroChip PICKIT3 adapter and any PC, Mac, or Linux computer.

• 120 mA +12V
• 10 mA -12V
• ? mA 5V
• 30 mm Depth

Module is available as a DIY project only.

This Module is currently available.