Rich_S
HomeGrownToneBrewologist
Another pedal that I've had the parts sitting around for over a year, that I finally got around to building. It's a booster modeled after the front-end of the old Maestro EP-3 Echoplex, built on the "Fat Pants" PC board from MadBean Electronics. It is named, obviously, after the foremost song by the foremost user of the EP-3 (not to mention the awesome movie he appeared in recently).
The circuit uses a charge pump IC to boost the 9 volt power up to almost 18 volts, like the original circuit. The 3-way mini switch changes a cap value, 20nF, none, or 56nF. Preliminary testing through my Vox Amp Plug (Marshall version) indicates these settings correspond to "bright", "fat", and "really bright", respectively. I don't know if I'll ever use the 56nF position, but I'll leave it - probably can't get that cap out without ruining the other one.
I have yet to play it through my 18 Watter, but plan a big shootout this weekend. My pedalboard has room for two boost/dirt pedals and I have to select from this, my new Rat clone (see other thread), my old Eternity clone, and a couple of modded SD-1s. Should be fun.
The circuit uses a charge pump IC to boost the 9 volt power up to almost 18 volts, like the original circuit. The 3-way mini switch changes a cap value, 20nF, none, or 56nF. Preliminary testing through my Vox Amp Plug (Marshall version) indicates these settings correspond to "bright", "fat", and "really bright", respectively. I don't know if I'll ever use the 56nF position, but I'll leave it - probably can't get that cap out without ruining the other one.
I have yet to play it through my 18 Watter, but plan a big shootout this weekend. My pedalboard has room for two boost/dirt pedals and I have to select from this, my new Rat clone (see other thread), my old Eternity clone, and a couple of modded SD-1s. Should be fun.
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