555 Nonsense Engine
a 555 oscillator input a 4017 chip
long string of 555 timers in monostable mode liked When triggered by a 4017
so output states of all 10 monostable 555 timers go to a common audio output .
all 555 timers have two potentiometers one for timing other for output level.
the 4017 can be stopped by the monostable 555 timers the 4017 clock input
this may need a nand gate or two so the ten 555 timers take turns with the 4017 stopping or interrupted when a monostable 555 timer is timing out.
then the 4017 chip gets oscillator input so moving on to the next monostable 555 timer in the 10 step loop.
the Hz of the output wave is made up of all ten output levels one at a time as set by the potentiometers.
so the 4017 stops then a monostable 555 timer is running.
up-date-
clock inhibit NOT clock re-set
the 4017 job is to advance loop one count one monostable at a time
if no inhibit is used then all the ten 555's can overlap in there own cycles.
monostable 555 timers trigger one at a time so the output wave is made up of all ten 555 timers outputs end to end.
circuit can have up to 21 potentiometers with one 4017 and up to 41 potentiometers with a 2nd 4017 with its own ten more 555,s
if two or more 4017's or 20 or more 555's then the output Hz is low enough to feed back into the master oscillator as FM on pin 5 of the 555.
the Nonsense Engine is a Analog Synthesizer. similar to the Atari Punk synth.
do not have time to set-up circuit now try and dig up 21 potentiometers in a hurry
this circuit art shown is missing most of its details that are common to the 555 in its modes of operation
also output audio buffer op-amp and Vss Vdd bus's
just found out about a 555 timer contest
have nowhere it post this online
back of the napkin circuit and made up a name for it ! Nonsense Engine