Adding random generator to this simple clock generator

DIY STUFF
1

Good morning from Perth, Australia.

Any suggestions on an elegant solution for adding a random generator to this circuit?

Rgds
Jo

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White noise, or random gates?

3

Hoping to turn it into a random gate generator :slight_smile:

4

Maybe this is something you can use?

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A 74HCxx series based LFSR seems to be what would be most in the spirit of this circuit.
Just need a couple of 74HC595 8-bit shift registers and a 74HC86 XOR gate.
And maybe reduce the 555’s capacitor to run the clock faster as the average random clock will be somewhat slower.

6

Hi Eddy

How are you doing? Hope fine. Its been a while since we’ve contacted but here im asking for a little advice on the random gates schematic from yusynth. I was wondering if one 1k resistor will do the job too instead of 8x 1k, since 1 led is turned on at a time i thought why wasting 8x 1k resistors? Does that make any sense or is there any particular reason to use 8?

Another thing is, where does all the 8x 4.7k resistors go? I cannot seem to find them on the schematic? Or is there a second sheet of the schematic?

Nice to see you here and have a nice day. Oh and did you check my modular build?

Anyways im building the random gates module as we speak. I hope its finished in a few days. Here are some pictures.

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1k resistors goes directly to jacks and led’s because of the limited space on the pcb. I did take a risk here to use a small one.:rofl::+1:

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Completed!! and works!!

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they go after the IO to I7 pins from the cd4051 per his schematic with a 2n3904 transisotr for each one .

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I was wondering if the output voltages of the random gates could also be “randomized” by simply flicking a switch??. Basically acting like a sequencer but without the potentiometers to set the voltages for pitch and/or cv.

Random gates AND randomized output voltages per random gate. Then we would have a random gates module that could be used as a random accent sequencer, or anything else that accepts voltages. Any ideas how to accomplish that to have random voltages? :grin:

Somewhere between 0 to +5v, or -5 to +5, or more i dont know. Just thinking out loud here..