Modified Pigronix EP-1 - Modifications done with help from Pigtronix and internet pedal forums, with a few I figured out by myself.
Modified Seymour Duncan Twin Tube Classic - Replaced capacitors with larger values to be better suited to frequency range of bass guitar.
Modified Boss DD-2 Delay
Bass Router - A bypass / blend / feedback pedal for bass guitar (original designs by others with modifications by Don Pancoe)
TGBF - Bazz Fuss with pickup simulator, tweaked BMP tone control and gain makeup stage.
Smashed Pickle - Smash Drive (LM386-based distortion) with tweaked BMP tone control.
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Effects Pedals

A few guitar and bass effects pedals that I have built or modified

Donald Pancoe
Industrial Designer & Electrical Engineer Philadelphia, PA