[sdiy] What do people use for matched transistors these days?

[crys]

I acquired a bunch of THAT 320 and 300 and used them for quite a few 
ircuits. Sometimes it was likely overkill, like when i built a ladder 
filter with them. I found them to be easy to work with and quite stable. 
They do cost but i think i either got a deal or bought a quantity. It 
was a decade ago. I did score about 20 LM394 cans but it was just as i 
packed up my lab to storage, I'm interested in what's what now.  I have 
made a tester and matched them myself, as already menioned quite easy 
these days. I started matching resistors, too, which was quite easy. I 
also built plenty of modules with just transistors from a new lot that 
sounded just fine.

On 9/9/2023 6:21 PM, Paul Glass-Steel via Synth-diy wrote:
> I’ve had good results with those too.
>
> On Sat, Sep 9, 2023 at 4:20 AM Mike Bryant 
> <mbryant at futurehorizons.com> wrote:
>
>     Nxperia also do dual transistors without the base resistors e.g.
>     BC856S.  They are on the same die so will be well matched.
>
>     ------------------------------------------------------------------------
>     *From:* Synth-diy <synth-diy-bounces at synth-diy.org> on behalf of
>     Scott Bernardi via Synth-diy <synth-diy at synth-diy.org>
>     *Sent:* 09 September 2023 00:33
>     *To:* SDIY List <synth-diy at synth-diy.org>
>     *Subject:* [sdiy] What do people use for matched transistors these
>     days?
>     Right now I'm looking at matched pnp's, suitable for a VCO. 
>     Something like the THAT-320 quad pnp would be ideal, but they are
>     kind of pricey. The quad is nice because you have an extra matched
>     transistor you can use for high frequency tracking adjustment.
>
>     I ordered some BCM856's to see how they will pan out.  I think the
>     VBE match will be good enough, I'm wondering about the base
>     resistance that causes deviation from ideal log conformance.
>
>     For npn's, THAT-300 or MAT14 are the best, also pricey.
>
>     _______________________________________________
>     Synth-diy mailing list
>     Synth-diy at synth-diy.org
>     http://synth-diy.org/mailman/listinfo/synth-diy
>     Selling or trading? Use marketplace at synth-diy.org
>
>
> _______________________________________________
> Synth-diy mailing list
> Synth-diy at synth-diy.org
> http://synth-diy.org/mailman/listinfo/synth-diy
> Selling or trading? Usemarketplace at synth-diy.org
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://synth-diy.org/pipermail/synth-diy/attachments/20230910/a1ae8cd5/attachment.htm>