[Test-Equipment] Source for 1% capacitors?

Barry n4buq at knology.net
Tue Mar 29 20:40:23 EDT 2011




 On Tue 29/03/11  6:50 PM , "jbarnes" jbarnes at aztec-net.com sent:
> The TRW capacitor factory is now:
> 
> http://www.ascapacitor.com/
> They made a lot of special capacitors that are found in Fluke HP etc. I
> have some designed by them when I worked for Varian. The ones I worked on
> have Part number VAR 19 and VAR 20. These were derived from catalog
> poducts.
> The values you are looking for may be found in a decade capacitor box.
> Capacitor are typically in a 1,2,4,4 sequence to make each decade.
> I suggest making each capacitors from a parallel combination.
> 
> for 0.02uF connect two 0.01 caps in parallel. For 0.04 parallel 0.018uF and
> 0.022uF.
> The temperature coefficient is also important. 
> 
> I would start with the capacitor that you can find and change them to
> better ones if you can find them.
> 
> Regards,
> 
> John VE3XRY

I've found a couple of sources for 0.010uF 1% caps.  One of them is a 50V version and if I can get by with 50V caps, I think I can even bundle 4 of them together as they're pretty small.

http://www.westfloridacomponents.com/AMN001/0.01uF.01uF+50V+1%26%2337%3B+Axial+Monolithic+Capacitor+SA405A103F.html

Thanks,
Barry - N4BUQ



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