Fulltone OCD GE Custom Shop Germanium Overdrive Pedal

The OCD pedal uses 2 x Mosfets configured as hard-clipping to 'Voltage reference" instead of the usual way: to ground." The earliest OCDs used 2 x Mosfets plus 1 x Germanium diode, but very quickly these diodes became harder and harder to find, and they became expensive.

This Custom Shop OCD features 2 x Mosfets plus 2 x Germanium diodes. The tonal result is great definition, more tube-like feel, a bit wider dynamic range, more sustain, and a more focused single-note tone.