![]() Inkscape wasn’t working out as you cannot zero the ruler arbitrarily, which irritated me to no end. Adobe Illustrator was my software of choice. This meant not only did I have a perfect basis for my design itself, but I could design it over the spots for the holes that I would then use for a drilling guide. It was PDF form, and layed out accurate to the millimeter. I was able to designing something with much greater confidence this time as I started with a drilling guide supplied by DIY Effects. This is often the most stressful, but ultimately satisfying part. Geofex has a fantastic discussion on The Technology of the Fuzzface (including the Fuller Mods). This proved encouraging, so I ploughed on. As a nod toward what might be called the mediocre standard circuit, I did initially build a completely standard silicon fuzz. This was mostly because I hadn’t ever used a Fuzz-face before, so was eager to try it in all it’s ancient and modern glory. This means I must use positive ground when I wire everything up. A pair of germanium transistors can cost anywhere between $10 and $50 depending on how much you’re prepared to be fooled either way they’re orders of magnitude more expensive than their silicon counterparts. Standard silicon fuzz on the prototype boardĭespite all this superstition, which normally sends me running, I went for a pair of AC128 germanium transistors from Mammoth Electronics. The PCB is designed to fit neatly into a 125B sized enclosure.Of course if you want to use wires, you still can. And it gives you a very sturdy board support within the enclosure, so no need for dodgy nylon supports anymore. Again this significantly speeds up the assembly of the board. The DIY Effects fuzz PCB has holes setup so that you can use PCB style Alpha pots instead of the regular lug type. The other time-consuming (and error-prone) part of wiring a stomp box is the potentiometers. ![]() We’ve all spent much longer than that cutting and stripping 9 wires to wire one up normally, so this is a godsend. This makes the wiring of the off-board stomp 3PDT switch a 30 second job. The PCB has been designed to use DIY Effects ‘stmp’ switch and ribbon combo.The PCB features a spot for an optional trimmer to aid in deciding where the ‘Bias’ pot ‘centers’.In fact, SLW prefers to call this control “Bias”, because that’s exactly what it is. This will tweak the waveform distortion characteristics. The ‘More’ control plays with the voltage on the top of the second transistor, which in effect changes the bias. ![]() ![]() ‘Less’ or what I decided to call ‘Load’ (even though SLW nor I can decide on what to call it) acts upon the input.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |