ranchorobbo at gmail.com
Fri May 1 14:43:55 EDT 2015
> The only original cap left is the oil-filled filter cap in the power supply.
It might not be a bad idea to leak test the cap. I have had two oil
caps in the p.s. of my CR88 short on me. They were each 4 mfd 500 v.
Over time the seals around the lugs let in air a bit and the
dielectric becomes contaminated. The first time it happened I
replaced the cap with a NOS Sangamo 600 v. 5 mfd oil cap. The second
time it happened I got serious and replaced the remaining two with two
sets of 1 mfd 600 v. polypropylene caps, 5 each paralleled. I got
lucky both times--I was in the shack or not far away and caught the
failure right away the first time and within 15 minutes or so the
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