[sdiy] LM394 vs. MAT02 vs. ?

[Tom Arnold]

On Fri, Nov 05, 2004 at 06:44:07PM -0500, WeAreAs1 at aol.com wrote:
> transistors straight out of the bag?  The schematic I have (originally from 
> Joachim Verghese's great ARPtech website, now located at  
> http://www.oldcrows.net/arptech/modmain.htm) depicts several pairs of transistors with a colored 
> circle drawn around the pair, presumably either to indicate matched pairs -- or 
> does it mean that these pairs are to be physically touching each other, like the 
> ones you were mentioning with the brass clips?  

As noted at the bottom of the schematic :
"Paired transistors are matched and thermally coupled"

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 - Tom Arnold -       When I was small, I was in love,                  - 
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