I have been building a couple of these ultra simple Noise567’s here and there, what a great little circuit! Super noisy, accepts an input, and has the craziest distorted ring modulator/fuzz depending on pot position. The only drawback so far has been that it has a constant VCO running that you play over. It’s fine when dealing in drum machines and keyboards that you want to sound like hell, but it just doesn’t cut it for guitar in my opinion. I tried a couple of different cap and resistor to ground combos in different places with some luck, but it always seemed to mute out the real beauty of this circuit. Anyhow, I’ll keep soldering away and searching the forums for some relief from the ultra VCO. In the mean time here is the orig schematic for the Noise567.

I’ll record a video in the next couple days, hopefully I’ll solve the crazy VCO issue before that. Happy building friends.

If I could get the constant osc. to shut up, this would be the best effect ever. There are a couple different versions of the 567 (the LMC567, LM567, & LM567CN that I know of so far) available, all with different audio results. I hear the LMC567 does not work in the NOISE567 circuit, but I am using the LM567CN. I’ll have to order all the different varieties and give them a go.

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