[sdiy] "zener" noise

[harrybissell]

"Roy J. Tellason" wrote:

> Interesting,  in that the circuit calls for a 2N2712 transistor as a noise
> source,  which is the same part called for in the magazine article I used in
> the first place.  I did a little bit of playing around with that portion of
> it,  using a socket for the transistor in the noise source part of it,  and a
> great many other parts worked in there just as well.  I don't think it used
> anywhere near as high a value of resistor,  though, as 4.7M -- I think it
> used something like 100K.

The bias resistor can be varied for the best sounding noise. It makes a big
difference !!!

One might try the Dick Cappels pink noise circuit that appeared in EDN.  It
appears
to be self-biasing.

H^) harry