Akashic Guitar effects circuit lookup
ATTACKVOLUME

Enclosure not stated · 2 knobs

Tagboard Effects

Maestro FZ-1 Fuzz-ToneVerified

Based on the Maestro FZ-1 Fuzz-Tone· 5 other boards clone it

Category
Fuzz
Controls
Attack · Volume
Build
Vero
Layout
Verified · Tagboard Effects marks it as built and working
Tags
Fuzz, Maestro

From the post

Request. This effect needs a 3V supply and is a positive ground effect so I've included a 3.3V regulator and an ICL7660S to provide the -3V (ish). You can omit that and power it with a pair of AA batteries or standalone 3V power supply if you prefer, but if you do remember to wire it as a positive ground effect.

Consider socketing the 1K5 resistor to experiment with values to get the best sound out of it, or maybe replace it with a 10K trimmer.

Description from Music Radar:

"The daddy of all stompboxes: the first commercially produced transistor-based guitar effect pedal and also the first fuzz box. First made in 1962, it took until 1965 to catch on when Keef used one on Satisfaction – and the world of guitar tone was changed forever. The FZ-1 used three germanium transistors to amplify and clip the guitar’s signal creating fuzz, glorious fuzz…"

Schematic

This is a board layout, a drawing of where each part goes, and the post may link the schematic it was drawn from. Open the layout at Tagboard Effects. No KiCad fragment has been drawn for this circuit yet.

Parts list 17 rows

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Check before you build · 1 value the reader of this layout was not sure of
  • 20u electrolytics (two, on the fuzz board): printed clearly, unusual value
RefValueNormalizedTypeNotes
Resistors 8
×310K10kread from the layout by eye
×1100K100kread from the layout by eye
×11M1Mread from the layout by eye
×11K51.5kread from the layout by eye
×12K22.2kread from the layout by eye
×1470K470kread from the layout by eye
×122K22kread from the layout by eye
×156K56kread from the layout by eye
Capacitors 4
×110n10nread from the layout by eye
×13n33.3nread from the layout by eye
×220u20uelectrolytic; read from the layout by eye
×410u10uelectrolytic, power board; read from the layout by eye
Transistors 1
×32N2702N270read from the layout by eye
ICs 2
ICICL7660SICL7660Spower board; read from the layout by eye
×178L3378L33regulator, power board; read from the layout by eye
Potentiometers 2
AttackA50KA50kPotentiometerread from the layout by eye
VolumeA500KA500kPotentiometerread from the layout by eye

Other boards based on the Maestro FZ-1 Fuzz-Tone