[sdiy] Oberheim OB-Xa noise generator transistor

Ben Bradley ben.pi.bradley at gmail.com
Sat Jul 14 05:11:31 CEST 2018


This surely uses the Vbe back-biased to 5 or 10 volts to generate the
noise, which exceeds the rating and damages any transistor for
"normal" use, so you'll do good to throw away any transistor you try
in the circuit that you don't leave in.

On Fri, Jul 13, 2018 at 4:30 PM, Gordonjcp <gordonjcp at gjcp.net> wrote:
> On Fri, Jul 13, 2018 at 02:23:27PM -0600, Ian Fritz wrote:
>> This again?  The noisiest transistors have the most popcorn and 1/f noise.  The ones with these smoothest white noise are very quiet. But whatever you like, of course.
>
> That's why I'd always go for a nice long LFSR, for preference ;-)
>
> But you can pick a noise transistor you like the sound of.  It's unique.
> Analogue Warmth, or some damn thing.
>
> --
> Gordonjcp
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