Good sounding tremolo pedal. I used the Runoffgroove version and perf layout. Not having a reverse audio pot, I used a 100K linear pot for speed. I also substituted a 500K pot for the 250K depth pot due to availability. This pedal has a good range of depth and speed, is really quiet, and sounds very good. It was easy to build and worked well once I stopped trying to bias the gate of the MOSFET and biased the drain voltage as per the schematic note :-)

The box is decorated with a Photshop filter picture printed on photographic paper. The paper is glued to the box with Modge Podge and the whole thing is sprayed with clear acrylic.