Akashic Guitar effects circuit lookup
FUZZTONEVOLUME

Enclosure not stated · 3 knobs

Tagboard Effects

NPN Fuzz Face with BMP Tone StackVerified

Based on the Dallas Arbiter Fuzz Face· 62 other boards clone it

Category
Fuzz
Controls
Fuzz · Tone · Volume
Build
Vero· 12×9· 7 cuts, 2 links
Layout
Verified · Tagboard Effects marks it as built and working
Tags
Fuzz
Open the layout at Tagboard Effects Duncan Amps Tone Stack Calculator

From the post

This was a request but thought I may as well share it here in case anyone else wants something similar. It's just a Fuzz Face with Big Muff tone stack which some may find useful, and can easily be adapted for a germanium build if you prefer. I included a graph of the tone pot rotation frequency response thanks to the excellent Duncan Amps Tone Stack Calculator which I would recommend everyone use when working with the included tone stacks to fine tune the build to your own taste/gear.

I've put the 8K2 resistor to the far left hand side so if someone wants to add a trimmer to bias Q2, they can omit the resistor and add it in this position. The trimmer legs may need a little fettling to span 4 rows but it should be easy enough to do.

And a second version with added base/collector Miller effect filter caps which cuts some high frequencies and makes it sound smoother and more like a germanium version. Similar to the DAM Meathead.

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 18 rows

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RefValueNormalizedTypeNotes
Resistors 6
×18K28.2kread from the layout by eye
×1100K100kread from the layout by eye
×1330R330read from the layout by eye
×133K33kread from the layout by eye
×147K47kread from the layout by eye
×139K39kread from the layout by eye
Capacitors 7
×110n10nread from the layout by eye
×122n22nread from the layout by eye
×1100n100nread from the layout by eye
×1220n220nread from the layout by eye
×147u47uelectrolytic; read from the layout by eye
×122u22uelectrolytic; read from the layout by eye
×12u22.2uelectrolytic; read from the layout by eye
Transistors 2
Q1NPN siliconNPN SILICONtype not given; legend: Transistors are NPN silicon (check orientation); read from the layout by eye
Q2NPN siliconNPN SILICONtype not given; legend: Transistors are NPN silicon (check orientation); read from the layout by eye
Potentiometers 3
FuzzB1KB1kPotentiometerread from the layout by eye
ToneB100KB100kPotentiometerread from the layout by eye
VolumeA100KA100kPotentiometerread from the layout by eye

Other boards based on the Dallas Arbiter Fuzz Face