This one started out as a stupid idea when coming across a cheap bluetooth module on ali-express. Why not build it in an Eurorack module? Could be fun, maybe even useful for that odd field recording or weird voice message.Continue reading “Utility – Bluetooth input”
Attenuators are handy in modular circuits. Not all modules have input attenuation so they come in handy. Attenuverters are even handier (is that even a word?). It combines attenuation and inversion of the incoming signal.Continue reading “ATT-1 Attenuverters”
I’m slowly working towards a project, it’s still not ready to be disclosed though, but it needed a dual rail power supply. I’ve always bought Doepfer DIY kits for my Eurorack needs, but I needed a +14V/-14V for this project. Since I could use an extra +12V/-12V supply as well for future Eurorack work, I decided to build a power supply with variable voltage regulators so it could handle both.
A very boring yet crucial part of any setup. A buffered multi always comes in handy and it’s pretty easy to build as well. Since I was building one myself I added a few leds to indicate signal and it’s polarity, that way I got some indication what’s going on. I used 2 separate leds since I didn’t have any dual coloured leds lying around. It would look a bit fancier with a dual led, maybe I should order a few, just in case I build a few more of these.
It shouldn’t be all weird stuff, sometimes one needs some simple building blocks. After a bit of experimenting with sending audio from the mixing desk to the modular I found myself short of a way to amplify a line level signal to the audio levels used in a modular. Hence, I thought I build myself an input module with the sole task to take in a line-level and give it a nice boost. It’s a simple module actually.