[Milsurplus] 51J-3

J. Forster jfor at quik.com
Sat Jul 9 00:30:23 EDT 2005


What Barry says reflects much of my earlier post, so just a couple of comments
on using a capacitor checker:

You'll likely have to remove the C from the circuit by unsoldering a lead or
two. Otherwise, the circuit leakage may overwhelm the tester's source
capability. I prefer not to do this. Also, you will have to do the C's one at a
time. In cases of severe leakage, the C tester may not be able to supply the
current needed in the earliest stage of the reforming process.

If you use a C checker, make sure you discharge the C very thoroughly before
hooking it to a digital C meter. They don't much like having a few hundred volts
across their terminals.

FWIW,
-John



Barry Hauser wrote:

One good way is to use a vintage capacitor tester that tests at operating

> voltage -- usually up to 600 vdc. -- for the leakage test. To reform an
> electrolytic, don't start at operating voltage, start way below.   [snip]



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