[sdiy] SMT transistor for white noise?

[Ian Fritz]

Do they have these in monolithic pair packages?

Ian

> On Dec 13, 2025, at 12:27 PM, Gordonjcp <gordonjcp at gjcp.net> wrote:
> 
> On Sat, Dec 13, 2025 at 11:11:54AM +0000, Mike Bryant wrote:
>> Too true 🙂   A large percentage of the world's small signal transistors now come from a huge fab in Chongqing and they just brand them to whatever their client wants.
>> 
> 
> Many years ago I bought a bag of something like 500 of the cheapest Chinesiest BC548-wannabes from Some Dude In Shenzen On eBay, expecting to maybe hand-match a couple of sets of a dozen reasonably close ones for filters.
> 
> Nope.
> 
> Any two you pulled out of the bag at random would have the same Vbe down to *microvolts*.
> 
> So that was a quicker evening than I anticipated.
> 
> --
> Gordonjcp
> 
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