[sdiy] SMT transistor for white noise?

grant musictechnologiesgroup.com grant at musictechnologiesgroup.com
Sun Dec 14 18:36:00 CET 2025


Curiously this one shows all the comments:

https://www.edn.com/a-non-finicky-mass-producible-audio-frequency-white-noise-generator/

On 12/14/2025 8:31 AM, grant musictechnologiesgroup.com wrote:
> Can anyone see the 10 comments below the EDN article? They are not showing
> up for me and those professional magazines usually have great comments.
>
> GB
>
> On 12/13/2025 1:05 PM, Mike Beauchamp wrote:
>> On 2025-12-13 09:35, Brother Theo via Synth-diy wrote:
>>> I switched to the 2 transistor noise circuit and have had zero issues
>>> since. The Future Retro 777 re-release uses that circuit.
>> Hi Timothy, doing some duckduckgo-ing, I found a few...
>>
>> https://www.edn.com/simple-white-noise-generator/
>>
>> https://www.nutsvolts.com/magazine/article/bipolar_transistor_cookbook_part_5
>> (figure 20)
>>
>>
>> The EDN article is interesting. Seems like the second transistor is
>> just the amplification stage and the increased noise level is because
>> of the addition of C1. I don't understand the function of C1.. time to
>> get out the breadboard.
>>
>> Mike
>> ________________________________________________________
>> This is the Synth-diy mailing list
>> Submit email to: Synth-diy at synth-diy.org
>> View archive at: https://synth-diy.org/pipermail/synth-diy/
>> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
>> Selling or trading? Use marketplace at synth-diy.org
>
> ________________________________________________________
> This is the Synth-diy mailing list
> Submit email to: Synth-diy at synth-diy.org
> View archive at: https://synth-diy.org/pipermail/synth-diy/
> Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
> Selling or trading? Use marketplace at synth-diy.org




More information about the Synth-diy mailing list