The germanium fuzz face reviewed by...
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Guitar distortion based on a LM308 with two modes of distortion silicon / germanium selectable by a switch. JFet Booster output for the lamp typed.
Guitar distortion pedal based on a JFET OP amp TL072.Two distortion modes: symmetric and asymmetric which will take you to the metal doors.
Guitar distortion pedal based on a OPA2604.Two distortion modes: symmetric and asymmetric for a warm and round sound from blues to hard rock.
Guitar overdrive 100% transistors jfet with internal voltage doubler circuit, any integrated circuit in the audio circuit.
The legendary sound of the 4558 review by the DOC.Guitar overdrive pedal based on a TI 4558 with a symmetrical clipping circuit silicon (sound close to a TS 808).
The Fuzz Face Silicon reviewed by the Doc ...BC108 transistors (sorted), the modern version of the Fuzz Face.
The germanium fuzz face reviewed by the Doc ...NOS germanium transistors MP41 Russians, the Hendrix sound at your foots ...
The fuzz face reviewed by the Doc ...NOS germanium transistors NKT275 version with red dot (sorted transistors). Limited series given the scarcity of transistors.