
Ever wondered what’s the difference between your self-built LED-LDR devices and industrial produced vactrols?

I built a beautiful new cabin-luggage-sized suitcase style case for my modular synthesizer

Yesterday I built this beautiful little noise creature together with my girlfriend as a birthday present for a friend.

Recently, my brother got hold of an old Crumar Performer which seemed to have some hidden secrets within…
This is a small but powerful device to use with your modular synthesizer. On each hand side there is one force sensing resistor turning applied pressure into a steady CV output.
A kind of six channel opto-theremin controlled by six LDRs with your hands and fingers, run off a 9V battery. Design by Borelia Borschtsch, a Zauner-Borschtsch Kopro. Fotos by Georg Oberlechner.
A small amp into an old broken desktop lamp run off by a 9V battery. Output is 0,5W with a switchable gain factor between 20/200. Ideal for testing coil instruments with low output level but also very suitable as a small guitar amp. 0,5W is more than you think!
Here’s my SSL Clone, the Zauner Ultratight. Schemos can be found at Gyraf’s webpage. Mine has the Turbo Board installed which makes it switchable between stereosum and dual-mono (“true stereo”) compression.
I finished my DIY 4-way mixer today. Active mixing of four channels with gain and a small level control LED and some nice big knobs from an old broken echo/delay machine. The name is a side blow to all the shitty Behringer products starting with “Ultra…”.
A power supply that provides stabilized symmetrical voltages at +/-12V and +/- 15V. Artwork by Borelia Borschtsch, a Zauner-Borschtsch Kopro.

Every now and then I repair or tweak audio-electronic or other electronic equipment if asked. Feel free to ask for help in your electronic concerns!