Gus Smalley modded the circuit from Aron. Aron modded it from tonebender. Both made enhancements and mods along the way. Or so the internet tells me. Anyway. It's supposed to be a silicon adaptation of the classic. It says 2N5089 on the schematic, but i would suggest trying out something a bit lower gain - like 2N2222 or BC109B.
Built this last night, just to avoid any issues with it :) Works - and it's definitely not a bad fuzz. I used MPSA18s on my test build, and those work well too. Those were lying around on my desk so i just sticked them in. Didn't socket them so i can't easily try on any lower gain ones in there. But you should. Point in 2N5089s must be within the noise levels. Still. I like this one. It's not a Fuzz Face, it's not BMP, and it doesn't feel that much like the tonebender either.
Tone control may feel a bit odd, but that's to be expected. After all, it is a four transistor tonebender mod.
Just recorded a small clip with the finished box: