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BALANCEEXPANDERTONE

1590B · 3 knobs

Effects Layouts (blog)

Univox SuperFuzz (modded)Verified

Based on the Univox Super-Fuzz· 37 other boards clone it

Category
Fuzz
Controls
Balance · Expander · Tone
Build
Perfboard
Layout
Verified · Effects Layouts (blog) marks it as built and working
Tags
Fuzz, Shin Ei, Univox
Open the layout at Effects Layouts (blog)

From the post

Here the Univox SuperFuzz with the mods done by FSB member derringer. It replaces the stock tone switch with a pot, as well as a few other useful mods. Socket the 2 ceramic caps going from the base to collector on Q1 and Q6 and try some different values (I'm guessing in the 100pf to 500pf range). This one's a little on the wide side, so you'd be hard pressed to fit it in a 1590B, but it should fit quite nicely in a 1590BB.

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 Effects Layouts (blog). No KiCad fragment has been drawn for this circuit yet.

Parts list 32 rows

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RefValueNormalizedTypeNotes
Resistors 12
×610K10kread from the layout by eye
×5100K100kread from the layout by eye
×422K22kread from the layout by eye
×247K47kread from the layout by eye
×2470Ω470read from the layout by eye
×21.8K1.8kread from the layout by eye
×21M1Mread from the layout by eye
×1220K220kread from the layout by eye
×1470K470kread from the layout by eye
×1150K150kread from the layout by eye
×115K15kread from the layout by eye
×11K1kread from the layout by eye
Capacitors 8
×110nF10nread from the layout by eye
×1100nF100nread from the layout by eye
×11nF1nread from the layout by eye
×156nF56nread from the layout by eye
×1390pF390pread from the layout by eye
×1??value not given; ceramic next to Q1 printed as '?'; read from the layout by eye
×1010uF10uelectrolytic; read from the layout by eye
×147uF47uelectrolytic; read from the layout by eye
Diodes 2
×21N34A1N34Aread from the layout by eye
×11N40011N4001read from the layout by eye
Transistors 6
Q12N22222N2222legend: Q1-6: 2N2222, 2N3904; read from the layout by eye
Q22N22222N2222legend: Q1-6: 2N2222, 2N3904; read from the layout by eye
Q32N22222N2222legend: Q1-6: 2N2222, 2N3904; read from the layout by eye
Q42N22222N2222legend: Q1-6: 2N2222, 2N3904; read from the layout by eye
Q52N22222N2222legend: Q1-6: 2N2222, 2N3904; read from the layout by eye
Q62N22222N2222legend: Q1-6: 2N2222, 2N3904; read from the layout by eye
Potentiometers 3
BalanceB50KB50kPotentiometerread from the layout by eye
ExpanderB50KB50kPotentiometerread from the layout by eye
ToneB10KB10kPotentiometerread from the layout by eye
Trimmers 1
×210K10kread from the layout by eye

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