[sdiy] Low voltage noise source

[Ken Stone]

Perhaps the endles string of op-ams would do the trick. I forget where I've
seen the diagram, but basically it uses a row of op-amps (4 or so) set with
high gain, ultimately amplifying "nothing". resistor noise etc is what
ultimately becomes your noise source.

Ken

>Im trying to do a low voltage noise generator,im talking about
>a all analog (no shift register)at +5V supply with at least
>1V P to P output!
>
>This has shown to be difficult, its quite hard to get a PN
>junktion to "noise" (grounded diode coupling, zener or the 
>typical NPN back to back coupling) at these voltages,
>if it does there is too much DC after up gaining stages
>that popping ocurrs even with DC blockler. Or the final
>noise are very collored due to the gain structure, allmost
>band passed! Also due to massove gain its quite sensitive
>to hum from varius sources!
>
>Any ideas folks on low voltage wite noise generators!
>
>Thanks!
>
>Reg
>KD
>
_______________________________________________________________________
Ken Stone   sasami at hotkey.net.au or sasami at cgs.synth.net
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