It was totally unintentional, but in the mess of old broken gear I stumbled upon the remains of my very first guitar amp. It was a Hohner SP55 I bought 2nd hand somewhere in the 90ties. A pretty unremarkable transistor based amp which never really tickled my pickle so to say, and on a day I fried the output amp and it ended on the pile of discarded gear. It had a useful reverb though so I scavenge the springs out of this thing and see if I could make myself a nice spring reverb for use in the studio and/or modular.

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Power supply

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.

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I found myself short of an ADSR in my system and it annoyed me to no end I hadn’t thought of buying a few more. Instead of hitting the favourite Eurorack module dealer for my fix I went googling to see if I could cook up one of my own. Couldn’t be that difficult. Right. Turns out, there are tons of useful ADSR schematics floating around on the internet. Continue reading “ADSR-1”

Buffered multiple

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.

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