[sdiy] Hand-matching capacitors for filter stages

Tom Wiltshire tom at electricdruid.net
Tue Feb 9 16:27:50 CET 2010


On 9 Feb 2010, at 15:14, cheater cheater wrote:

> Tom,
> good question regarding the tolerance vs material. I'll be thrilled to
> find out what is going on there.
>
>
> Regarding hand matching capacitors: Is your time worth the price  
> difference?

No, probably not. One of my motivations is actually that 5%  
polypropylene caps are available in convenient 0.2" pitch boxes,  
whereas the 1% polystyrenes are mostly available in a board-hogging  
almost-20mm axial lead format. It might cost me some time, but it'd  
save me money *and* PCB space.

T.





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