sides of the wave, for full-wave control that
is unlike nearly all stompboxes.
The Idiot Wah is a one-transistor variable
filter, and Mr. Escobedo put it together
with a minimum parts count with
maximum versatility. There’s a switch
for added resonance, and like any good
pedal with such a function, the end of the
knob results in an ear-piercing squeal. It
should be noted that nobody will use this
setting, but it’s nice to know that the entire
range is available, up to and including
unmusicality.
As you might expect, pairing these circuits
is a delight, and we’re going to do just
that. This marks our first foray into two-
channel pedals; an exciting time. The
process is almost exactly the same, except
that the “output jack” lug of switch
“1” goes to the “input jack” lug of switch
“2.” Are you ready to party? I sure am.
provided herein. Legal mumbo-
jumbo aside, we ask that readers be
familiar with a soldering iron and its
accompanying safety procedures before
trying anything listed here. Furthermore,
if you fire the pedal up and it does
not work, it will need troubleshooting.
Assuming the components are not
damaged, the pedal will work. I built this
very unit according to these instructions
and it fired up, first shot, so I know the
instructions are correct.
WITH THAT OUT OF THE
WAY, LET’S BUILD THIS
BEAST! HERE’S WHAT
YOU’LL NEED:
But first, that disclaimer awaits!
Neither I, nor Tone Report Weekly
bears any responsibility for any kind
of personal or property damage that
may occur as a result of the instructions
PARTS NEEDED:
RESISTORS
• 3x 10k
• 4x 100k
• 4x 510k
• 2x 1m
42
TONE TALK //
CAPACITORS
• 1x 220pF (ceramic)
• 1x 680pF (ceramic)
• 1x 4.7nF (0.0047uF, film)
• 1x 22nF (0.022uF, film)
DIY: Double Whammy: Build The Tim Escobedo Square Wave Shaper and Idiot Wah