[NJARC] Mega 328 Tester

[David Sica]

Tester purports to test ESR (although using an unspecified frequency and
presumably a low voltage. I'd need to be a 'real engineer' to have an idea
of how that might influence things.)  But assuming there's a correlation
between ESR and leakage current (and maybe there's not?) I'd figure you'd
get a bad ESR reading on a cap with damaged insulation.  (There's a lot I
need to learn about ESR.)


New Jersey Antique Radio Club

On Wed, Dec 30, 2015 at 11:31 AM, Aaron Hunter <ahunter01 at comcast.net>
wrote:

> Just remember
> Reply = Poster
> Reply All = Everyone
>
> _________________________________________________________
> I hope everyone realizes when checking capacitors, only the value is
> checked, not the leakage current.
> I had some fairly new electrolytic capacitors that had dents in the cans.
> I checked them with the checker and a good capacitance value was shown.
> When I check them with my HeathKit capacitor checker, all dented capacitors
> had high leakage current.  The only one of the group to escape a dent
> tested good.
>
> Aaron Hunter
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