Coming Soon



This is a clone of the Frantone peach Fuzz. The signal chain is something like: In –> op-amp –> LM386 –> LM386 –> BMP Style Tone Control –> Out My first build sounded great but, I had forgotten the power…

ETI Hyper Fuzz is strange Fuzz from the 1988 Electronics Today International Guide to Making Music. I found it here. I wrote more about this here. This is my modification to the original circuit. I replaced what looks like an…

I bought a bunch of chips from Aliexpress. Are they legit? I don’t know, and I’m not sure how to check them. They seem to work. But, I’m using them in dirt boxes, if the sound is low fi and…

What is it Hard clipping distortion. I put this in the same family as the Pro Co Rat. They are distant relations. Boss says: The DS-1 Distortion is a true icon in the world of guitar effects. Introduced in 1978,…

I was really impressed with the dylan159 Rat, it sounded amazing, I needed to make an original Pro Co Rat. Here is the schematic I used. I made a PCB with Eagle PCB. I forgot to put a name and…

Here is a snippet from Bernie Hutchins. I think this is from Electro Notes 132. Seems to be an interesting clipping scheme. I found this here: I’ve been thinking about this snippet for years now, I’m putting it here…

Thanks to everyone who came out to the workshop yesterday! A few people bread boarded some circuits, and a few soldered some prototypes on strip board, after some some debugging we managed to get everything working! Here is an updated…

I ran into this post a few years ago and have thought about this often. This looks similar to the Crowther Prunes and Custard. The First op-amp looks almost like a normal clipping stage. The second one has a…

A King Rat using a dual op-amp. It replaces the JFET output buffer with the spare op-amp stage. Its another schematic from this thread on Freestomboxes.org. This looked like a really smart idea, I had to try it. There is…

I ran into this post on FreeStomboxes.org. Violet Blues, looked interesting. I don’t own a Bluesbreaker, might as well make this one! I designed a PCB in Eagle, designed, an enclosure, manufactured a PCB. I think this year, all boxes…

Today’s workshop at Noisebridge is about the Common Emitter Amplifier. The goal is to build the common emitter circuit on the breadboard and test it out. What is the Common Emitter Amp? Its a single transistor amplifier found in many…