
UBoat V1.5 - Build Instructions
1.0.0 - 8 September, 2015 462.94 KB
Sub-Octave-Effect based on Merlin Blencowe’s circuit.
Most of the Sub-Octave effects today (if we talk analog here) are based on the Boss(TM) OC2 circuit. Merlin has digged up another method to generate an octave effect and designed a nice circuit around it. Learn more here: http://www.valvewizard.co.uk/uboat.html
This circuit has a few changes to the original circuit:
- True bypass instead of the original FET switching
- A Track-pot has been added for finding the sweet spot where the octaver works best for your guitar pickups.
- The envelope follower part has been altered to a more standard circuit.
See a demo of the pedal in use:
Link to obsolete V1.1 build doc:

Merlins U-Boat V1.1b - Build Instructions
1.0.0 - 8 September, 2015 561.57 KBModulation
$ 10.08