I'm indebted to Deviant Synth for news of the Phantastmatron tube synth kit. It's a relatively simple $195 build-it-yourself kit to build a complex playable tube oscillator, based on WWII era Navy radar circuitry. The kit illustrated by a series of increasingly awesome videos: Building the circuit board, playing with a ribbon controller, and - seen on the right - processing voice.
: 8:20 pm