Mitchell

Mitchell

  • Joined: March 31, 2012
  • Articles: 504
  • Comments: 78

King Rat dylan159

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…

Workshop: Common Emitter Amplifier

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…

DeMont 3PDT

I built this BJFe Honey Bee Overdrive, from the AionFX PCB. I gave it away, and 4 or 5 years later it has come back with a faulty foot switch. Turns out I’m all out of foot switches, except for…

Shopping for Parts in the Age of Tariffs

I’m buying parts and Tayda Electronics is no longer cheapest. I’m sure how I feel about this. Shipping and Tariffs on an order I’m putting together are $50! I made a similar cart at StompBoxParts.com and shipping is $17.75 for…

Pedal Builing at Noisebridge

I’d to thank everyone who came to the pedal building event at noisebridge March 28, 2026. Everyone was super friendly and enthusiastic. I scheduled a new event April 11, 2026. Hope to see you all again! https://www.meetup.com/noisebridge/events/314017920/?utm_medium=referral&utm_campaign=share-btn_savedevents_share_modal&utm_source=link&utm_version=v2&member_id=31132902 if you haven’t…

Univox Super Fuzz

This is a clone of the Univox Super Fuzz. I built a few of these here. This one uses a matched transistor pair: LM394CH. I thought this would enhance the octave effect since matched transistors enhance this effect. Seems like…

Fuzz Face NPN Ge

I have this bag of NPN Germanium transistors. These are rare and you don’t see them much in pedals. They offer a huge advantage over the typical PNP types found in Fuzz Face’s, you can use a regular power supply!…

Tremshifter v2

This is an updated PCB for Tremshifter. The original idea is Dead Astronaut effects. I built a few his PCBs, but didn’t like the layout and construction, so I designed my own PCB. My first version had some issues, this…

Fuzz Face Ge NPN

This is an NPN Germanium Fuzz Face. I designed the PCB in Eagle, and had the PCBs made at OSHPark.com. The original Fuzz Face used germanium PNP transistors. The germanium transistors is supposed to have some special mojo. PNP types…