DIY + Unusual Gear Music tech Tech

Michigan Synth Works has an open-source 303 processor and a new kit

Call it the Bride of x0xb0x. Michigan Synth Works today teased a new, Arduino-compatible, open-source 303 processor, plus a full DIY kit. They’re both affordable ways to build your own all-analog, modern TB-303 with current components. And it feels like the early spirit of the open x0xb0x is back. The x0xb0x is the device that […]

Ukraine’s Tembra Modular continues workshops, gear despite attacks

Through blackouts, bitter cold, Internet disruptions, and nightly attacks, Ukrainian DIY producers Tembra Modular persist. The two-person shop continues to run workshops and produce DIY kits and assembled modules. Blackouts can’t stop them: their production often takes place literally by candlelight. Here’s Kaximia to tell us the story of their modular synth resistance, and why you should be conscious in your choice of what hardware you use.

Peter Kirn - February 2, 2026

DIY + Unusual Gear Modular-Analog Music tech Stories Tech

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Bastl’s Kastle 2 and Citadel Eurorack are now DIY kits, open source platforms

It started with Kastle 2, Bastl Instruments’ cute and clever handheld. It could be a multi-effect, a sample player, a synth. Then Citadel modules came along and did those things in Eurorack. Now, Bastl’s got a surprise: you can buy these as DIY kits, and a big chunk of the Raspberry Pi-powered platforms are being released as open source. Here are all the details.