Yusynth EMS Diode Filter.

Finally got round to finishing this filter and I’m very glad I have. It sounds fantastic.

I got the PCB quite a while ago when I swapped some of my boards with another user on Muffwigglers. Initially it didn’t work and it took me a little while to find the error on the PCB which was easily fixed with a jumper wire. I also decided to try it with my replacement for the LM3046 which is discontinued in a through hole package. My replacement uses 3 pairs of SMD matched transistors. I tested it with a real LM3046 and my replacement. There’s more gain in the LM3046 and the signal is a bit hotter but it still sounds pretty much the same with my replacement. As my stocks of LM3046’s are pretty low I decided to use the replacement. I’ve put a link to the project at the end of this post.

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In the video I have one VCO running into the audio input and one into the cutoff frequency CV input. Additional tones are produced by increasing the resonance.

Link to my LM3046 replacement:

Order from OSH Park

New panel for my Mega Percussive Synth

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I finally got around to re-panelling my Thomas Henry Mega Percussive Synth. This was the first module I built and my beginning with modular synths. It’s been in constant use and I thought it was finally time to replace the ‘temporary’ plywood panel that’s done the job for the last 5 years!

January’s diy project, a new case


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January’s diy project, a new case. Deviated slightly from the ‘technical drawing’ on an old envelope.

New Video – TR-707 through a Plague Bearer

So, I was telling a friend that while working on something in my studio I’d been playing with putting my TR-707 drum machine through the Flights of Harmony Plague Bearer. As he was curious to how it sounded I made this little video.

The Plague Bearer is from the DIY run that Flight ran through the Muffwiggler site. I ordered and built 2 for enhanced sound mutilation and I’m still not sure I don’t need 4!!!

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Studio corner

Studio corner