It’s been awhile, but the first batch of new projects for 2020 is finally here. Four of them are Runoffgroove favorites, and then four more drive circuits are joining the family.
Several of them use J201 JFETs, which we now have available in SMD format pre-soldered to adapter boards so they can be easily used in through-hole designs.
A super-simple drive created by boosting the signal into a J201 JFET until it clips in a tube-like manner.
An adaptation of the Supro 16T amplifier, with JFETs replacing the tube stages. The source circuit for the JHS Superbolt.
An updated version of the original Runoffgroove Supreaux, an adaptation of the Supro 16T amplifier with JFETs replacing the tube stages.
A simple no-bias phaser and vibrato circuit that uses commonly available parts.
A drive pedal based loosely on the classic Tube Screamer with a few extra tone-shaping controls added. (Side note: the first green PCB in the Aion family!)
The overdrive channel of the Intersound IVP rack preamp, adapted for pedal use.
The preamp circuit of the Gorilla TC-35 amplifier adapted for use as an overdrive pedal.
Jack Orman’s classic mini-boost circuit, using J201 JFETs to achieve an amp-like overdrive tone.