Tools, Tones and Toys for Guitarists
You may struggle to get hold of the 2SC828 transistors, so just try any high gain NPN silicon. Just make sure the pinouts match, or use some small heatshrink tubing or offcuts of wire insulation and twist the legs if you need to. Geiri’s demo:
Update: aegert on FSB has experimented with the circuit and has found that putting a low value cap like 820pf between pins 1 and 2 of the opamp really improved the pedal. He also suggests that a 500K log pot is much better for the Gain control, so give that a go. Update 2: daz … Read more
This one is sprinkled with fairy dust. Put it in front of any Boss effect and you’ll sound just like Dave Gilmour. Allegedly.
From an advert in 1966: “A new Baldwin-Burns fuzz box has been introduced. It is a fresh version of the existing Buzz-Around and incorporates a special sustain effect. It is available now at a cost of 10 guineas.“ Bargain! Here’s a reasonably compact layout, I’ll add a mojo layout at some point too. You could … Read more
In the words of Prescription Electronics, the COB: “allows its user to blend a clean guitar signal with a pure upper octave at the preferred balance including output and overdrive levels. Noise free and compatible with your favorite stompboxes!“
Here is an adaptation of the EA tremolo with the schematic done by runoffgroove. http://runoffgroove.com/eatremolo.html Their notes on it: Modifications to JD Sleep’s version are: * Input buffer and main gain stage have been combined into a single MOSFET stage designed by Gez Paton. * The “pulsing LED” by Darren Inwood and Rob Strand. … Read more
Get your big boxes out for this 5 knobber! :o) Although having said that it is only 21 columns wide and so will fit into a 1590B if you’re feeling adventurous (and you’re more precise with your measurements than I am)
Layout updated. If you want to build this now I would suggest you build this version http://tagboardeffects.blogspot.com/2014/02/keeley-katana-boost-layout-rev-2.html Vero layout for this popular pedal with built in charge pump to provide the required 18V from a 9V supply. UPDATE (09-02-2012): The schematic that this layout was created from has been shown to be incorrect. In … Read more
A few people have requested a vero of the Mastotron, so here it is. If you want to make it verbatim then you would put a 100 ohm resistor in series with the input wire before the pot, and a 100 ohm resistor in series with the 9V supply wire, but I personally wouldn’t bother … Read more
Here’s a layout for another sought after pedal by Bjorn. and a slightly more compact version