Recently I was in the local Dollar Tree store, and came upon the toys below on a shelf.
yes, they cost a dollar each.
yes, they have TUNING knobs. Press a button and twist the knob for garbled craziness.
btw, they have only one real button, the four buttons visible are all connected in parallel…..
sounds later…..as soon as I install wider range pots.
The enclosure is reclaimed medical surplus, a Sleep Apnea machine controller. I gutted (hanging on to the nice rotary switches) and built some cool circuits into it!
3 Triangle Core Linear VCO’s with variable wave clipping
1 Clock Sequencer with attenuators (the ultimate LFO/ modulation source)
1 6 channel mixer with 2 attenators, 2 DC coupled (the rest AC coupled), 1/4″ out
1 external in/ expression pedal in (5V on ring for expression pedal)
I have some sounds:
Based on the Eric Barbour schematics from the cgs synth website. Now I just have to build a keyboard controller, though it mangles my guitar quite nicely.
It contains a noise source, 2 VCO’s, 1 VCF, 1 VCA and a 2 channel mixer(from the old RCA tube book).
