[sdiy] Quad transistor sources

mark verbos mverbos at earthlink.net
Mon Jun 28 10:29:53 CEST 2004


was there ever a discrete implimentation of this in a commercial module?

;)

just kidding

Mark


WeAreAs1 at aol.com wrote:

> I once 
>read that the National "super-matched" precision transistor pair (LM394) is made 
>this way, and that it has 100 paralleled transistors on each side of the 
>"pair", for exactly this purpose.  Is this true?  When you parallel a bunch of 
>trannies, does the internally paralleled Base input require more overall current 
>in order to properly drive the transistor?  (that is, does the effective 
>resistance of the Base junction change when you link all the internal transistors 
>together?)
>
>
>  
>



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