[sdiy] ODP: SMT transistor for white noise?

[Roman]

IMHO the best SMD transistor for noise is tiny microcontroller in SOT23-6 running LFSR.

Roman 

---- Użytkownik Mike Beauchamp napisał ----

>I'm noticing my latest batch of MMBT3904 by ONSEMI are barely creating 
>any white noise, requiring about 8000x gain to get up to +/- 5V.
>
>Previous batches of the MMBT3904 only required about 500x gain to get up 
>to +/- 5V. When I was using TH 2N3904, I think the gain required was 
>only about 200x.
>
>This much gain is also making something on the board (ceramic caps, the 
>transistor itself?) pretty microphonic and tapping on the board is now 
>audible.
>
>Before I order a few dozen samples of different transistors off digikey 
>to test, I'm wondering if anybody had any go-to parts for SMT 
>transistors that are still noisy?
>
>Mike
>
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