White noise

[Papa_lazerous]

Anybody know here of any schematics or sources for a white noise genertor?

[GREEN FUZ]

I just did a VERY quick search of the forum. There are some threads relating to it but a couple that I checked out had broken links. I`ve got a book by R. A Penfold that has schematics for White and Pink noise generators. Let me know and I`ll post them to you.

[R.G.]

How about GEO?

See
http://geofex.com/FX_images/pseudorandom2.pdf for a high quality CMOS noise generator and
http://geofex.com/FX_images/lofi.gif for a quick and dirty analog method.

[caress]

http://www.musicfromouterspace.com/analogsynth/AAA_NoiseIndex.html

all the noise you would ever need!

[g.]

very simple one

[ambulancevoice]

my whitenoise/high gain distortion pedal schem is in the members only gallery
under the post "schem i need another opinion on" or something like that
ahhh never mind, here is my own whitenoise schem based on another ive seen


what do you want it for?

[Paul Perry (Frostwave)]

I'm never really happy with noise generators based on reverse junction breakdown, because it means that performance varies depending on the transistor used.
Would it be possible - using a low-noise op amp - to multiply up the inherent noise of a 1 meg resistor to a useful level?

[ambulancevoice]

how do you do that?

[Papa_lazerous]

Forgot to say thanks....too mnay other things going on.

gona put together the really simple looking one g. posted.  I only want it for testing tone controls on a few things.  Got the scope was just a usable noise source I was lacking so I could do something useful