Most boutique builders cut their teeth in the diy world. Over a decade ago, we were building clones from vero, purchased pcbs, or hand-etching our own. All of these options have pros and cons, but we found a lot to be desired in what's available from ready to build PCB sources. Cramped, illogical layouts; shapes that don't fit the enclosure we want, forced wiring schemes, and overall difficulty to build. We set out to apply the same techniques to PCB design that we employ in our commercial builds that help us build faster and more reliably. The result are inexpensive, excellent sounding, and easy to build PCBs. We offer basic build documentation and customer support through email. If you are a newb, you've come to the right place. If you are experienced and want more elegance in your builds, our boards are the perfect place to start.
This is the first in a series of vintage-inspired circuits we are designing to accomplish our DIY goals and objectives. Not only can you build a great sounding clone of the Colorsound Overdriver (with a master volume control), you can build a charge-pumped positive ground Germanium version on the same board. As long as you have some higher-gain PNP Germanium transistors, you can socket and experiment to get some really unique sounds. Some well-known users are Jeff Beck and David Gilmour.
Each transistor includes a bias trimmer and pads for your multimeter to easily check bias on the transistors. You can, of course, dial in whatever bias you want if you enjoy the sound, but see the build doc for recommendations.
Special Notes: If you are a total beginner, please make sure to read the build doc carefully and make sure you understand the difference between positive and negative ground effects. You don't need to become an expert for this build, but you do need to take special note on how to get the power and ground connections correct. The default orientation of the parts is for positive ground, as this project was developed to run Germanium transistors.
The Univox Superfuzz was one of many clones of clones of clones from the Shin-Ei corporation in the 60s. It's a medium-heavy, octave fuzz effect that can be scooped or flat. This effect was used by a huge range of guitarists, going from classics like Pete Townshend all the way to Adam Yauch of the Beastie Boys.
Not only can you build a great sounding clone of the Univox SuperFuzz, you can add in extra diode clipping options, adjust the octave effect, and choose between the standard scoop tone switch, or include a blend control. The board also fits cool old-style TO-39 case transistors as well as standard TO-92 packages.
Special notes: There is an internal trim pot to adjust the octave effect. It is technically not necessary if you carefully match q4/5 for gain. We suggested installing the trim and attempting to match q4/5 gain and adjusting from there. It will be easier to find the sweet spot and get the more prominent octave effect. See build doc for more details.