[sdiy] Matched transistors - critical parameters?

[dan snazelle]

On Feb 9, 2012, at 4:51 PM, Paul Schreiber wrote:

> Use a wooden spring-loaded clothes pin :)
> 
> Paul S.




hmmm...jumping into this thread at the very end and seeing this really made me stop and wonder!




> 
> 
> ----- Original Message ----- From: "Matthew Smith" <matt at smiffytech.com>
> To: <synth-diy at dropmix.xs4all.nl>
> Sent: Thursday, February 09, 2012 3:48 PM
> Subject: Re: [sdiy] Matched transistors - critical parameters?
> 
> 
>> Quoth ASSI at 10/02/12 06:55...
>> ...
>>> You can do quite a bit better than 1mV by hand using the balanced bridge
>>> measurement method; Ian Fritz routinely matches to tens-of-micro-Volt
>>> levels(*).
>> Thanks, Achim, more interesting stuff! Finding this topic fascinating.
>> As we're talking SMDs, footprint on a PCB (mine are gold-plated anyway) and some sort of spring clip to hold the part down?
>> -- 
>> Matthew Smith
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