The Dinosaural Tube Bender from Dan Coggins of Lovetone fame, who now designs for Thorpy FX. The Thorpy Fat General compressor is actually a Dinosaural OTC-201 Opticompressor. You can read up on that here.
This is the most recent trace from Aion Electronics. Aion do a pretty good job of tracing to say the least, so I expect it to be accurate.
This is different to the magazine version schematic, which has the same topology but with some different values. I built one based on the magazine version a while back, and binned it pretty quickly – couldn’t work out what the fuss was about, as it was rather disappointing.
I’ve built and tested this version, and it’s nice little overdrive. Runs from very clean, right through to a heavy drive, with a some very usable tones along the way.
The Aion Electronics includes a tone switch mod for more variety, and a bit more power filtering and protection. I’d recommend building the Aion version, as you get more flexibility for limited additional cost and effort.





