[ARC5] Capacitor Tests

[Richard Knoppow]

    Yes. A milliampmeter and DC supply work fine and are what is 
used in cap checkers. An ohm meter will also work but most don't 
apply enough voltage to see the leakage in many capacitors. Note 
that electrolytics will always have a little leakage, I don't 
remember what the cut off is for it. Other types should have 
essentially no detectable leakage.
    A lot of people are very concerned with ESR or dissipation 
factor but a cap can have acceptably low ESR and still be leaky, 
you must test for both.

On 1/10/2019 5:35 AM, Robert  Eleazer wrote:
> Relative to caps leakage as described by Robert Downs is it 
> feasible to simply hook a miliammeter in series with a DC power 
> source and measure that leakage?   I think I will give it a try 
> this morning.
> 
> Wayne
> WB5WSV

-- 
Richard Knoppow
1oldlens1 at ix.netcom.com
WB6KBL