Sorry, just saw your question. It's called the Attraction. You can get more information at Charles Altmann's website:
http://www.mother-of-tone.com/attraction.htm
Be prepared. This is an extremely unconventional design. Requires a car battery to power. It's nothing more that a circuit board mounted on a rectangular piece of spruce wood.
http://www.mother-of-tone.com/attraction.htm
Be prepared. This is an extremely unconventional design. Requires a car battery to power. It's nothing more that a circuit board mounted on a rectangular piece of spruce wood.