If you would like to purchase a Knight School Synth, we offer a complete kit if you want to assemble it yourself. Assembly is very simple and only requires a soldering iron, solder, and good ventilation. We take care of the rest. Here's an anecdote from my personal DIY experiences: I learned how to use a test model and read schematics just before entering college, and I built many of the models published on ampage.org. Shortly thereafter, I discovered a new website dedicated to DIY. It was called Beavis Audio. If you know it, it's for a good reason: BA was one of the best DIY sites around, and everything on it was written in simple, easy-to-read English. One of the projects was called “Heterodyne Peyote Space Explorer.” That's how I discovered the CD40106 chip, and I spent hours playing with this device when I was taking electronics classes. I stumbled upon something by combining an amplifier circuit I was working on with the 40106. It produced a strange noise, but I thought it could be cool with a few improvements. It took a lot of tinkering, but it worked much better when I added a second amplifier circuit in front of it. I couldn't really explain why, but it sounded good, and I built a few for my friends. Some time later, I stumbled upon a web page written by a guy named Tim Escobedo. His “Circuit Snippets” page contains a ton of interesting information, and it still exists today. It turns out that Mr. Escobedo discovered a form of this circuit in 2002, and comparing his analysis of the circuit with mine and that of the Space Explorer was a real “eureka” moment for me. Our Knight School Synth is our most ambitious project to date. Since then, I have been looking into Mr. Escobedo's method of producing pre-gain, as it is simpler and uses far fewer parts than my original design. Essentially, it converts your guitar signal into a square wave, then uses the CD40106 to vary the pulse width of that square wave. There is also a switchable LFO, which automatically varies the pulse width for you, as well as a depth control to modify the intensity of the shaping. It's a really cool effect that emulates the monophonic synthesizers of yesteryear. I dare say there's not much on the market today that sounds like this!
Features:
Rate: speed at which the LFO automatically modifies the pulse width.
LFO Switch: Turns the LFO on and off.
Depth: intensity of the LFO. Power Supply The Knight School Synth only accepts a center-negative DC power supply capable of providing 9 volts and at least 0.5 mA of current (more is acceptable). DIY kit information The printed circuit board has markings indicating the location of each component. The image below will help you identify the different components. You will also find a video below explaining the process.
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