The original Interfax Harmonic Percolator, made famous by Steve Albini, were so few of them made.
To nail those Shellac tone now, the “Hurts” is what you need!
The infamous Harmonic Percolator circuit tuned for maximum tone. Capable of filthy sub octave and wilful feedback, through to just a hint of grit, or an amp slamming transistor booster. Definitely more than just a fuzz.
As in the original HP-1 the Hurts uses both germanium and silicon transistors carefully selected and graded for both sound and gain. Inside it has a couple of trimmers, one to tune in the octave "sweet spot" and one for gain compensation in case of oscillation.
It uses best quality 1N695 germanium diodes as in the original HP-1 and has a switch to change to silicon diodes which are slightly louder (Latent Lemon Audio's favourite on bass by the way). In the mid position this switch bypasses the diodes making it a very loud transistor booster that can really crush the front end of an amp. Latent Lemon Audio have bought up the last of the best quality 1N695 diodes they can find, unlike the alternatives these germanium diodes bring out the octave effect whilst ensuring adequate volume output from the vintage pedal circuit.
Latent Lemon Audio founder Justin Saban wanted a Harmonic Percolator that sounded something like Steve Albini’s but couldn't find the sub-octave throaty HP-1 sound he was looking for - especially after he luckily got to record an old 70s original Ed Giese Interfax HP-1 which sounded amazing! Back in 2012, after more breadboard experimentation and research than is probably healthy, he came up with the Hurts pedal.
Harmonics: fuzz/distortion/overdrive gain control Sputter - transistor bias Balance: output volume Diode switch: Ge = germanium diodes, Si = silicon diodes, centre position = diodes bypassed. Deep - this allows more low frequencies through the circuit, great for both bass and guitar.
Octave: adjusts the octave “sweet spot”. Set diode switch to Ge and Harmonics to max for strongest sub octave effect. Gain Compensation: It is recommended to leave this trimmer alone unless your pedal oscillates, in which case back it off slightly.
Top quality components: Alpha footswitch, Lumberg power socket, Neutrik jack sockets, Hammond enclosure etc. Latent Lemon designed circuit boards. Hand built to last in Luton, England.
Enclosure size: 120 x 94 x 42
9V power - standard 9V DC. 2.1mm centre negative.
Current draw - 33mA