— APIS FUZZ (2021-06-30)
SUMMARY
The APIS FUZZ is inspired by the TMR Bumble Buzz, a knob-less octave-up fuzz using a
phase splitter followed by a differential pair to emphasise the upper octave.
It features an optical true bypass, allowing for a smaller DPDT footswitch with a click
more subtle than with a common 3PDT footswitch.
APIS FUZZ LINEAGE
The Superfuzz was originally developed by Shin-ei in Japan in the late 1960s, and re-
packaged for various brands, including Univox.
The F-1 Fuzz Tone is essentially a low-cost version of the Superfuzz. It’s one of Kay's
budget effects from the 60s, housed in a plastic treadle pedal. It has a simpler front, no
variable drive, no output level control and no gain recovery stage after the mid scoop.
The Bumble Buzz removes the last pot from the circuit, replacing it with a fixed and
slightly modified tone stack.
No direct support is offered beyond the documentation provided here.
This document is written assuming some experience building pedals. Replacement parts
are only offered for missing or defective components.
DIFFICULTY
EASY
POWER
5 mA at 9 V DC
IMPEDANCE
Z
in
= 30 k
Ω
at 1 kHz
Z
out
= 33 k
Ω
at 1 kHz
Summary of Contents for APIS FUZZ
Page 8: ...APIS FUZZ 2021 06 30...
