[sdiy] SMT transistor for white noise?

[Oren Leavitt]

I have a 70s 1N47xx (I forget what it is) 12 volt Zener diode that 
crackles and whistles.
It's my favorite in my collection of noise generators! This thing is 
raunchy and doesn't need a lot of gain.

On 12/13/25 7:54 AM, Mike Bryant wrote:
> Thinking back, in the 70s Zener diodes gave better noise than transistors
> 
> On 13 Dec 2025 12:52, Mattias Rickardsson <mr at analogue.org> wrote:
> 
> 
> Den lör 13 dec. 2025 13:34Paul Perry via Synth-diy <synth-diy at synth- 
> diy.org <mailto:synth-diy at synth-diy.org>> skrev:
> 
>     Is it possible to simply amplify the thermal noise in a high value
>     resistor?
>     paul perry Melbourne Australia
> 
> 
> And/or the noise of a noisy op-amp in a high-gain setting?
> 
> /mr
>