Tools, Tones and Toys for Guitarists
Another good looking Effdub design. One could pretty easily mod this for “smooth” switch (by making the 2n2 cap from input to ground switchable) and giving it a “fuzz” control by replacing 1K resistor from Q3 emitter to ground with 1K pot. Thought i’d draw this to the spec, as some people seem to like … Read more
Request. The vero version of this that I already posted included axial caps, this keeps the size down by using all radial caps and will be more handy for someone wanting to add a small boost board to another effect for instance. Includes details for adding a master volume pot. Geiri’s build of this layout … Read more
Simple NPN germanium booster that looks like a nice addition…. From the Dragonfly schematic archive.
Here’s a cheaper-to-build alternative for MAX1044/ICL7660 voltage doubler charge pump. According to the documentation, this puppy is capable of 30mA of output current, so it’ll be enough for any stompbox use. Circuit isn’t as small, as using NE555 timer chip will need couple of resistors and caps to get the job done. Still, simple and … Read more
Here’s a cheaper-to-build alternative for MAX1044/ICL7660 voltage inverter charge pump. According to the documentation, this puppy is capable of 30mA of output current, so it’ll be enough for any stompbox use. Circuit isn’t as small, as using NE555 timer chip will need couple of resistors and caps to get the job done. Still, simple and … Read more
EZ build 60’s style fuzz that can get fairly smooth at one extreme and lots of “splat” at the other. Geiri’s dual build (splat knob is fixed on the layout as of now):
Hexe Guitar Electronics’ Night Train overdrive. Nothing too ordinary here. Original Hexe demo and layout feature the 3 knob version of the design. NPN/PNP pair should be low gain and matched to approx same hFE/beta.
Request. The Idiot Wah is a simple building block Bridged/Twin T filter giving a resonant low pass response. It’s specifically designed for electric guitar, for simplicity and useability, making it a bit different from similar designs. The input resistor helps the input from loading down and attenuates the input signal. The Darlington transistor has enough … Read more
This is a great sounding phaser so I thought I’d still do it even though it probably doesn’t fit with my philosophy of when I would and wouldn’t use vero. Similar in some ways to the Phase 90 but I haven’t seen a layout for this one and so decided it would be a good … Read more
Great circuit by Joe Davisson, but should probably be called a distortion rather than an overdrive because it is apparently quite high gain. The trimmers should make biasing the JFETs easy so don’t let inconsistent JFETs put you off. In terms of mods, Joe said of the circuit: For higher gain, change the 2.2M/100pF to … Read more