Finally finished the prototype for the quad VCO! This has been the biggest, hardest build I’ve done so far. Building from raw materials always takes longer and this is a pretty big module.
First job was building the remaining two oscillators. I also added some 3 pin headers to my power bus.
Then came the pretty serious task of wiring it all up. There’s a little wiring behind the panel for grounding and attenuators, then 60 wires to hook up with the boards. I’m not a massive fan of wiring, but it all worked out OK.
Very happy with how it’s turned out. Particularly pleased with how much it looks like what I designed in photoshop!
There is still a minor issue with it, in that only one of the FM inputs is working at the moment. It’s bound to be a soldering problem or a silly mistake.
I did open it back up to take a look, but couldn’t see anything obvious. I only added the FM input as an afterthought, so I’m not worried about it right now. I’ll work it out and fix it later, for now I just want to play with it!