Tools, Tones and Toys for Guitarists
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
And the BJT version for those who prefer them to JFETs Version without trimmers which allows you to keep the board size down:
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
Quite a nice sounding and simple AutoWah. Thanks to Bernardduur on FSB for the scheme. Short but sweet: It’s a ’70s style auto wah like you haven’t heard since you tossed your bell bottoms.
I personally enjoyed the AF-100 BeeBaa design a lot, so once i noticed that this existed – i just had to draw it up. Slave to my own habits, i “modernized” the transistor pinouts to match those everyone have in their drawers. Original has 2SC1000GRs in them, so your usual suspects should work just fine … Read more
