Is an analog arpeggiator possible?

[pappasmurfsharem]

I am quite the noob when it comes to these things, and I've seen similar topics on these and other forums.

Is it possible? I mean their are analog octave and sub octaves, and choruses have that detune effect.

Is there a way to have a chain of IC's that change pitch based on a pot position? That runs through a step sequencer to each IC?

[haveyouseenhim]

I don't see why not. I'm no engineer by any means but you would probably need a pitch shifter of some kind. And have the pot that controls the pitch replaced with a 555 to control speed and a cd4017 to sequence it to 8 different pots that change the pitch.   Look up owyheesound's atari punk console with 8 step sequencer as a reference  

[cloudscapes]

a clock source, a cd4017, a lot of logic and a pair of 2399's (or BBD's), maybe.

one 2399 is "assigned" to the even numbers coming out of the 4017, and the other the odd numbers. at every step "trigger", one 2399 down-times the amount you want (set by pot) resulting in whatever is in its buffer to be repitched. while this is happening, the other 2399 is already sampling the input, ready for its turn on the next sequencer step, where their roles would be reversed. logic would be needed to gate which 2399's output can be heard at any given time, and which can only take input.

just theorizing here.

I don't think it could be 100% analog. logic and the sequencer is digital, and whether you're using a 2399 or a bucket brigade chip, those are at least half digital. i nthe case of BBDs, analog on the amplitude axis, but digital on the time axis. phase shifting is analog and can produce pitch shifting, but I don't know by how much. it might be just frequency doubling or halving, so single octave range. I may be wrong.

[pappasmurfsharem]

a clock source, a cd4017, a lot of logic and a pair of 2399's (or BBD's), maybe.

one 2399 is "assigned" to the even numbers coming out of the 4017, and the other the odd numbers. at every step "trigger", one 2399 down-times the amount you want (set by pot) resulting in whatever is in its buffer to be repitched. while this is happening, the other 2399 is already sampling the input, ready for its turn on the next sequencer step, where their roles would be reversed. logic would be needed to gate which 2399's output can be heard at any given time, and which can only take input.

just theorizing here.

I don't think it could be 100% analog. logic and the sequencer is digital, and whether you're using a 2399 or a bucket brigade chip, those are at least half digital. i nthe case of BBDs, analog on the amplitude axis, but digital on the time axis. phase shifting is analog and can produce pitch shifting, but I don't know by how much. it might be just frequency doubling or halving, so single octave range. I may be wrong.

Well not totally analog, but you know. Chips that don't require programming to do what I want.