Tools, Tones and Toys for Guitarists
Update 25th September 2017 – Component error corrected. Thanks to Frank and Jimmie for the heads up A project from Madbean which he no longer supplies PCBs for, which is based on the Carl Martin Plexitone. The switch allows you to put either the Crunch or Hi-Gain pot in circuit and so effectively makes this … Read more
And seeing as I’m doing little ones tonight, this is the buffer section of the now discontinued (both product and company) Axess BS-2 Buffer/Splitter, and for once isn’t just a rehash of a generic unity gain buffer (although to be fair none of these are going to be too far removed). A charge pump gives … Read more
Traced from gutshots on the blog forum posted by hahafender, thanks for the pics buddy :o). Some of the traces on the unused side of the opamp weren’t visible but the left hand side is a generic opamp buffer and that’s the important bit. I think the resistors used on the other side we’re just … Read more
Another one for the metal heads. The 2SK184 JFETs can still be obtained from some sellers on eBay, but it’s just a buffer at the end of the day so you can use others with the same pinout like 2SK117, 2SK170, 2SK30, BF244A etc. The transistors used in the gyrators though don’t seem to be … Read more
Moving on from the HM2 which obviously has quite a powerful EQ, I thought I could use the circuit to make a handy standalone EQ. I was going to just use a quad opamp and make this 2 band with 2 of the channels being used as the input buffer and output gain stage, but … Read more
And for those who DO want the chugga chugga crushing lows! :o) And I didn’t expect it but this will fit in a 1590B too (doh!) so the Lite version may not get built quite as often now. But still a good exercise in adapting these things and I’m glad there is a more compact … Read more
Quite a few people have asked for a layout for this over the last couple of years, and I was always put off because with 3 x ICs and at least 3 transistors (depending on which schematic I used for the layout) there was no way it was going to fit in a 1590B, and … Read more
Request from the forum. Info from Brian about the original circuit: The Stupid box was the first pedal introduced by Subdecay Studios in 2003. I had been looking for something to get a big ballsy sound out of my amp, but my ultra clean 100 watt 6L6 based tube amp combo just did not seem … Read more
Request for this very nice sounding and versatile booster from a Brazilian pedal builder Fire Custom Shop. The switch selects between clean and dirty mode. In dirty mode it puts diodes in the feedback loop of a non-inverting amplifier, and changes the frequency response of the high pass filter at the stage. Following that is … Read more