Work in progress. We’re making music/sounds with old lab function generators. This thing is called geräuschzeug.
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welcome to the forum , that is awesome . do you have a sound sample like a youtube video ?
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Yes, some tracks are uploaded to soundcloud Stream Geräuschzeug music | Listen to songs, albums, playlists for free on SoundCloud We’re also hosting a radio show in https://radiodiodi.fi 19.4. 20:00 utc
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It’s been hundreds of Eurorack builds since I’ve built any Kosmo, so it felt good to put together an @analogoutput Audio Mixer tonight:
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Stoopid little op amp tester. Turns out those two TL074s I assumed were fried after I reverse powered them seem to be okay. Good enough to light LEDs anyway.
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I started building a Kosmo rack, 2x80cm. I just applied first layer of black oil finish. The smell is liquifying my brain and it’s self-immolating when left in small amounts in some rags or paper. Good thing that I rented a separate working-room from a building next to where I live.
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Ventilation highly recommended!
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yes and be careful with those rags wet them and lay them out flat or they will build up heat inside themselves and smolder / burn . I have experienced this first hand and it can and will happen .
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I might have just ordered some more modules from @lookmumnocomputer. Triple Splashback, Mini Mixer and Quad VCA on the way from England to Australia. I can smell the solder fumes already. 
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NEON KOSMO! Love it!
yeah finally the pcb’s have been sitting done on the bench for weeks . for some reason I didn’t get the face plates when I ordered the pcb’s guess I figured I would make them . well that didn’t happen so I ended up ordering the face plates from Kassutronics which took a while to get here. but they are ready for the rack , as soon as I rebuild those [ the rack boxes ] and finish up grading the power LOL never without a list of to do’s .
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Finally almost done with this monster… 
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Hi all, I am 99% done with my sequencer on the DFAM clone. I just need to adjust my log pot on the clock as it is doing the opposite of what i want.
I used the simple 3340 VCO design from Sam, and the MS20clone filter to test it (as well as the dual VCA to get the rythm effect) and it already sounds super good.
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Started on a Kosmo synth!
Built a front panel for power just because i wanted the power plug at the front of the box.
3d printed a bracket for the Mini Bus power
And a wooden box for 75cm worth of Kosmo
It’s birch plywood, i don’t want to paint it a colour but wondering what i can paint it with so it doesn’t get marked as easy and keeps the same birch colour, some sort of clear coat?
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Polyurethane is probably easiest.
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Beeswax makes a brilliant finish and gives protection.
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I built myself a new case:
- classic black
- 3 x 60cm module space
- double sided (front & back)
- on/off switch with propper cable connection
- off the shelf power supply
- built mosty with pre cut wood from the hardware store and self painted
(edit: typos for everyone)
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built this little box thing as part of a trade
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Poly-acrylic finish works well on birch ply. It is water based, so it has less VOCs than Polyurethane. It is also a more clear finish, so it won’t yellow the wood like polyurethane. It also dries much quicker.
All that said, I prefer a linseed/wax finish, like Tried and True, on my work. My boxes are birch ply with tried and true over milk paint. I prefer finishes that don’t try to kill me.
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