Maker: BLAMMO! Electronics
Model: Harmonic Perkolator
Classic even order Harmonic Perkolation sounds with less noise, more output, an updated footswitch, and component values based on Steve Albini's personal HP.
First off, we add a more robust power filtering section to bring the noise floor down some and clean up the unwanted hiss/hum in between notes or when not playing. Most of the original units need to be dimed to get past unity gain but we address this issue by adding a transparent clean boost at the circuits end. With the extra output you can now push that tube amp into bang bang fuzz territory or get to (and past) unity with the harmonics knob set low. An original 2n3565 gold lead NPN silicon transistor paired with one NOS PNP P416b Russian germanium keeps the original voicing intact by encouraging even order harmonics to bloom and bubble into your guitars signal path. We then swap the standard clicky style 3PDT footswitch (that can be audible in quiter groups) with a relay based true bypass switching system that uses a no-click style footswitch rated for 3x as many cycles.
Two controls hold sway over the Harmonic Perkolator; BALANCE is just a volume knob (you know how those work) and HARMONICS controls the gain and fuzz saturation by affecting the signals input impedance. Get chimey low gain distortion tones when dialed left or pleasing fuzzy distortion sounds with unique character when dimed.
- Soft switching
- NOS 2n3565 silicon + P416b germanium transistors
- Board mounted Alpha pots w/ dust covers
- NOS D9J germanium diodes
- Panasonic Film capacitors
- Teflon coated off board wiring
- Hand silkscreened graphics
- Red LED
- Accepts the standard 2.1mm center negative 9VDC power plug (Boss style)
- Current Draw : 27ma
Handmade with care in Portland, Oregon
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