[Boatanchors] ESR Measurements: How Bad Is Bad ??

[Garey Barrell]

Dick -

Generally speaking, bad is  _BAD_  , i.e., either a cap will read 
fractional ohms for most caps, certainly less than 2-3 ohms.    Bad caps 
will read hundreds of ohms or more depending upon the rest of the 
circuit.  I don't think I've ever seen one over 3-4 ohms that wasn't BAD.

73, Garey - K4OAH
Glen Allen, VA

Drake 2-B, 4-B, C-Line & TR-4/C Service Supplement CDs
<www.k4oah.com>



Richard W. Solomon wrote:
> I have one of the Dick Smith ESR meters. Nice device, but I
> wish I could find more info on analyzing the test results.
>
> For example, I test a 470 mfd @ 50 vdc cap. The meter reads
> 0.15, the chart on the meter says 0.09. How bad is bad ??
>
>
> Thanks for any tips,
>
> 73, Dick, W1KSZ
>   
>