[sdiy] 555 noisemakers

[Tim Ressel]

Oh, dear....

Beware Forrest M. Mims III. His books were fraught
with errors so blatant I caught them as a kid.

--tr


--- prototek <prototek at optonline.net> wrote:
>     I need a very small portable noise maker so I've
> decided to breadboard a
> 555 based design I found in a good ole' Forrest Mims
> book :) Has anyone else
> experimented with the 555/556 chips for noise/sound
> effects?
> 
>                 -John
> 


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