Effects Project: LOGAN 5 Ring Modulator

This one is quite the noise-maker effect. Very kling-klang ring mod tones, much like the Daleks on the old Dr. Who show or some of the quirky music in the movie "Logan's Run". It's built around the LMC567, a tone decoder IC with an internal high-speed oscillator.

This project is based on Tim Escobedo's "Thing Modulator" circuit.

Sounds interesting with a clean guitar or pushed by a fuzz. Probably not a good project for more conservative musicians.

Here's the build guide, which contains mods and alternative build options:
http://www.forrestwhitesides.com/files/up/docs/LOGAN5_Build_Guide.pdf

A limited number of professionally fabricated PCBs are available at Caps N' Such.

Below is the layout and click here for the PCB transfer (print at 600dpi for proper sizing).