Instruments for a New Electric Music

Improbability Drive

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Hear the Improbability Drive in action:
Guitar demo
Bass demo
Synth demo
Drum synth demo

The Improbability Drive is a licensed reissue of one of Devi Ever's earliest and most ambitious circuits built to Infanem standards with greater tonal range and reliability.

In the Effector 13 days, Devi's builds had the potential to change from batch to batch depending on parts availability and ambiguous build sheets. This resulted in the original big purple box (version 1) and later small yellow box (version 2) IDs having slightly different circuits. The differences were in the A and B switches along with two capacitors in the base circuit.

The Infanem Improbability Drive handles the differences using three way switches for A1/OFF/A2 and B1/OFF/B2 along with an additional V1/V2 toggle. This allows the user to access original V1 and V2 tones in addition to mixing values for new tones.

In addition to these functional upgrades, the pedal now has top mounted jacks and a build style deserving of the Infanem name. This yields increased reliability and a lower noise floor without compromising the essential tone of the ID circuits.



  • All top-mounted jacks. Right to left: Input, power, output.
  • Standard Boss-style 2.1mm 9VDC input, negative tip.

Tech details:

  • True bypass switching
  • 1590BB Hammond enclosure (4.7 x3.7 in) in brushed aluminum with black graphics. All screen printing, machining, and assembly done in-house in Portland, OR.
  • Double sided, through-hole plated PCBs produced in Mulino, OR and assembled in-house.