It’s one of the modules I use a lot, so I thought it was about time to get rid of the prototypes I have in my rack and build one that looks more like the real deal. I’ve taken all good things from the first 2 versions, ditched all the bad stuff and add some new stuff. That’s a lot of stuff.

In short, It’s a percussion sound generator, with a focus on metallic sounding percussion. Cymbals, hihats, tin cans, gongs, cowbells, … you name it, it’ll do it. It doesn’t really stop there, it’s able to create quite some unique sounding percussion elements, as well as some interesting drone textures. So it’s quite a versatile thing to have in your rack.

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This one is a re-build of one of my first ‘designs’, if you can call them that way. Nevertheless, It’s a percussive module designed for all kinds of metallic sounds; cymbals, hihats, gong, bells, plate hits, cowbells, trash cans, … you name it. Since I’ve build the first one I’ve been using it in every song since. It’s actually a very useful and versatile percussion module. At that time however I didn’t really had the habit of writing down schematics, I just soldered things together until it worked. Yet I wanted to revisit this module again because I could use a second one and I also wanted to iron out some of the quirks my initial build had as well as add a few features I regret not having on the first module. So I kinda started over, this time taking notes though.

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While doing research for the oscillator I stumbled –  seems to be a common theme — upon these IC’s. The ICL8038 promises to be a stable oscillator with very few external components. It’s an obsolete product, but I could get a few of them via Ali-express cheap enough to experiment with. Since it offers a sine output I immediately thought about doing some FM type percussion. That way I wouldn’t need 1/v per octave and pitch fluctuations wouldn’t be that much of a problem either. I also had a V2164 quad VCA chip around, so a 4 operators (aka oscillators) seemed a perfect fit. Enough to provide some interesting FM timbres at least.

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I always wanted to build a ‘clap’ sound module that’s not a one on one re-creation of the 808 or 909 and has a bit more control. I liked the sound on the Vermona DRM, so something like that, but not quite the same.

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