Additional information
| Based On | Harmonic Percolatora |
|---|
Schematics, circuits, PCBs and veroboards for guitar effects pedals.
The Deluxe Germanium Percolator is an upgraded version of the classic Germanium Percolator pedal. It features additional Transistor and Output Cap switches, as well as Perc and Tweak controls for transistor biasing and Body potentiometer for input density control. The original Percolator was designed in the 1970s as an original circuit not based on anything previously available in that era. It passes even order harmonics while suppressing odd-order harmonics, creating a more pleasing sound. This board allows you to build two different versions of the same pedal: the Stock version, which is wild and raw, and the Albini version, which is smoother and more controlled. The Deluxe version also features a toggle switch to select between diodes, allowing you to experiment with different components for a louder sound and less compressed drive. The controls on the Deluxe Germanium Percolator include Balance, Body, Harmonic, Perc, and Tweak potentiometers, as well as Output_cap, Transistors, and Diodes switches. The ideal hFE for the Germanium 2N404 in the circuit is between 40-60, creating a nice and crunchy sound with plenty of focus. As the gain increases, it gets a little unruly and makes some noise, and also starts to get the microphonic behavior that can be a fascinating tool.
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