Hello,
Not sure of a source for your exact request. Do you have a general understanding of electricity? If you are looking to design your own circuits to control circuit bent gear, then you’ll probably want more of an understanding of how electricity and digital signals work (since a lot of circuit bendable stuff is probably using a chips to generate the sounds).
Maybe check Mutable Instruments forum, as it’s full of DIY / modulars geeks
One question like this would bring you tons of leads, I’d bet…
with love . share this bible of electronics n hacking by Nicolas Collins
If you are looking for some nice little projects, lushprojects.com has some cool kits. That’s where I got my Le Strum kit. There’s also BleepLabs, Rare Waves, Music from Outer Space, thonk.uk, groovesizer and synthrotek that I frequent, but there are tons out there. I also just ordered The art of hardware hacking by Nicolas Collins from Amazon,( thanks for the PDF @thor ) And I just ordered Make Magazine’s analogue synth book. There’s a bunch out there. I will just say that if you’re looking for a cheap and easy project, lushprojects has a great PDF brochure on how to build an atari punk synth, and i use that guide with my middle school kids- it’s great!
you guys are the best thank you !