Akashic Guitar effects circuit lookup
WOOLPINCHEQOUTPUT

Enclosure not stated · 4 knobs

Revolution Deux

ZVEX Woolly Mammoth

Based on the Z.Vex Woolly Mammoth· 15 other boards clone it

Category
Bass
Controls
Wool · Pinch · EQ · Output
Price
see vendor
Also as
Vero layout · from Revolution Deux
Tags
freestompboxes.org trace
Read the post at Revolution Deux Schematic imagefreestompboxes.org thread Vero layout

From the vendor

The ZVEX Woolly Mammoth, a bass fuzz designed by Chuck Zwicky that also works on guitar and draws under half a milliamp. The post describes it as the standard Fuzz Face layout with mods: large coupling caps that pass deep bass, a Big Muff style tilt EQ at the output and a Pinch control that sets the feedback between the two silicon gain stages, changing the pulse width and adding a gating effect.

Schematic

The schematic is in the post. Open it at Revolution Deux. No KiCad fragment has been drawn for this circuit yet.

Parts list 18 rows

Report a wrong parse

Got parts in a drawer? See what you can build with them.

RefValueNormalizedTypeNotes
Resistors 6
R12.2K2.2kread from the schematic by eye
R2100K100kread from the schematic by eye
R351K51kread from the schematic by eye
R420K20kread from the schematic by eye
R510K10kread from the schematic by eye
R64.99K4.99kread from the schematic by eye
Capacitors 6
C1220n220nfilm; read from the schematic by eye
C210n10nfilm; read from the schematic by eye
C310n10nfilm; read from the schematic by eye
C4220n220nfilm; read from the schematic by eye
C5100u100uelectrolytic; read from the schematic by eye
C6100u100uelectrolytic; read from the schematic by eye
Transistors 2
Q12N39042N3904unmarked in the original; 2N3904 or BC547A; read from the schematic by eye
Q22N39042N3904unmarked in the original; 2N3904 or BC547A; read from the schematic by eye
Potentiometers 4
WoolB2KB2kPotentiometerP1, 2k lin; read from the schematic by eye
PinchB500KB500kPotentiometerP2, 500k lin; read from the schematic by eye
EQB10KB10kPotentiometerP3, 10k lin; read from the schematic by eye
OutputB10KB10kPotentiometerP4, 10k lin; read from the schematic by eye

Other boards based on the Z.Vex Woolly Mammoth