Has anyone built a Vox Tonebender or Solasound Mk1.5 Tonebender using the PUFF board? These circuits are pretty much the same as a Fuzz Face, but with slightly different component values. There are 2 different Vox Benders with slightly different component values. I think next time I have the opportunity to get a PUFF board on sale, I may take the plunge. If I build one of these and build a Mk3, I will have all the Tonebender versions, although I need to finish the Supa version that I just started working on. I believe I have all the requisite transistors.
The Si version of the Vox could be built with a GBOF board as it should not need a charge pump (unless you use PNP Si transistors). The differences are shown below for your education and enjoyment. The values in black are the default component values of the FF.
