[R-390] Rebuilding C551 - BTDT?

[Craig C. Heaton]

To All,

Going back into the archives, (I could be wrong), the issue of C551 and PCB
oil was discussed. The consensus was the oil was non-PCB.

Just the same, whatever, I'll let some of the old timers settle the issue of
beating a dead horse/dead horse walking, etc. Seems safer just to cut the
cap open with a dremel tool when in doubt, heating any oil with a torch is
taking a risk. Adding latex gloves at this point.........

Also apologies if needed and looking for my nomex.

Craig,

-----Original Message-----
From: r-390-bounces at mailman.qth.net [mailto:r-390-bounces at mailman.qth.net]On
Behalf Of Renée Deeter_k6fsb
Sent: Tuesday, October 17, 2006 10:41 AM
To: n4buq at knology.net; R-390 at mailman.qth.net
Subject: Re: [R-390] Rebuilding C551 - BTDT?


I've done quite a few-

To rebuild C551 first remove it. Next drill a small hole (#60 or
smaller) in the bottom to allow the vapor to escape while unsoldering
the bottom. (Please think SAFETY FIRST). A small torch was used to melt
the solder in removal of the bottom and cleaning it up. Do this upside
down (terminals up) to keep the PCB oil in the can. There is not much
oil about a teaspoon, just enough to make a big mess! Remove and dispose
of the innards properly. Then solder the new capacitor ie.
mylar 1.5 uf or 2.2 uf ,your choice of value(s), to the terminals,
assemble and tack solder the bottom back on. reinstall......
easy....
Renée, K6FSB