Synths + Kits

Demos may be heard/seen here:http://home.comcast.net/~ijfritz/MiscProj/Threeler.htmhttps://www.youtube.com/channel/UC8mKuBoR8bfHTLYRJ1sl0RA"Several people have said this is the all-time best-ever filter. I don't know about that -- I've always been more...

A synth DIY classic and long-time favorite! The origins of the module are described here, courtesy of natural rhythym music: https://naturalrhythmmusic.com/lopass   Other good build and demo threads here: http://www.modwiggler...

  DIY Frames The heart of Frames is a 4-channel analog VCA under tight digital control. Through flexible input/output mixing and normalling options, it can be patched to serve the following purposes (among others): 4-channel attenuator/VCA...

The bong0 is a twin-T based drum module with a LED acting as a nonlinear resistor to give it some interesting characteristics. The trigger input acts as a normal input to get your drum sound. The input marked ‘in’ can also be used, or...

8hp Two PT2399 chips roped together in series, one with vactrol control and 4 different feedback paths. Latest docs here  

The RYO XNOR/XOR/NOT is a 4hp boolean logic module for Eurorack. This module is available assembled and as a Eurorack DIY synth kit. The XNOR/XOR/NOT module can be patched as two NOT gates and one 2-input XOR gate, one NOT gate, one 2-input XOR gate and...

The Router was developed to use in the cellF neural synthesizer at MoNA’s Mofo exhibition in Jan 2017. As cellF would be left running for 6-8 hours per day, we wanted a module to periodically switch around the CV signals to create new patches. The...

The AI001 Multiple Eurorack Synthesizer Module is a 1x6 or a 2x3 passive multiple in only 2hp! It is critically important to be able to split and distribute your modular's signals to multiple destinations with the AI001 Multiple Eurorack Synthesizer...