Dunlop JH-1 Hendrix Wah

I was asked if I could make a layout for the hendrix crybaby, so here she is. not a whole lot different from a regular crybaby. There are 2 additional caps, resistor change, and different value pot. You may be wondering what these changes do, and in short it moves the sweep range lower.

I have one, it was my first wah, which I got used for $30, and personally I like the lower sweep. I've also compared it with a few others I've built, Colorsound Fuzz Wah and aVox, and I feel there's a nice sweet spot with this one when playing single coils. I know there are those that aren't crazy about it, but hey not everyone has the same tastes.

Earthquaker Devices Black Eye

From the source:

This ll discrete, MOSFET based circuit provides nearly 30db of unadulterated clean gain boost with a minimum amount of tone coloration. Note that you can also use this as an attenuator by turning the Boost knob counterclockwise away from the noon position. It can also be used as a powerful buffer with an input impedance of around 5M Ohms and an output of around 1K Ohm, best used after your effects chain. This device does not create distortion or overdrive on its own. However, it can be used to drive your favorite amp or pedal into singing distorted sustain. Simple, yet effective. Top notch components and circuit design assure that your signal arrives to its destination in a truly pure state.

When you look at the circuit you can see it's basically a modified SHO.

Italian Jen Wah Clyde McCoy

Had this sitting in my completed layout folder and completely forgot to post it. The legendary Italian Clyde McCoy Wah from 67-68. 

Dunlop GCB-100 Bass Crybaby

Dunlop's classic Crybaby Wah that was modded for use with bass. Not much else to really say about it.

Frequency Central Promiscuous Girlfriend

Another tube booster/overdrive created by frequency central over at FSB, schematic.

What does it do? Well it does clean boost with the Gain set at minimum, flick on the Dirt switch and you get some nice diode clipping too. Turn up the Gain and you'e into overdrive territory with diode clipping, flick the Dirt switch off and you get even more overdrive. All with some nice tonal variations courtesy of the tonestack, typical Big Muff Pie Tonestack. You can easily tweak the tonestack to taste.

You can also try different diodes for D5-D6, keep in mind when they are engaged you will loose some output, but there should be more then enough output with them engaged. What may be a nice tweak is to change the Dirt switch to a pot so you can control how much of the signal gets clipped by the diodes.

I opted to have the power on a separate board to help avoid issues with interference with the rest of the circuit. Make sure you are rated at least 50V due to the increased voltage from the doubling at the powerboard, which gives out approximately +35V. Also, on the power board you'll notice that I have 2 connections for the heater pins of the tubes, pins 3 & 6, but you can just run 1 wire to tube 1 then have a wire connects to the pins of tube 2.