master clock from a 40106 drives a 4017 counter. pulses from outputs 1 through 8 get sent to the switches where they are routed to the binary control pins on the 4051. this is an 8-channel analog signal switcher, so basically you're selecting input 1, 2, 3 or 4 to be routed to the output. on the inputs are the four octaves.
0 0
0 1
1 0
0 0
however, on the other 4 inputs is nothing.. pulling the third control pin high means silence. opportunity to have a 'gapper'- hardcore squarewave tremolo. either in sync with the clock (inverted clock to control pin, 50% note length, nice!), or driven by a second lfo on the 40106.
that works, kinda. however, the fun begins if you drive the gaps into the audio range - fake ring modulation style. Sweet.
still need to figure out some final mixing options - what voice to route to what filter, and wondering if i need extra filters with more controllable parameters.
started working on rehousing the whole thing.
the case is in a pretty bad shape, crumbles when drilled, and most importantly: it's gonna be too small for all the impending gadgetry.
