[ARC5] Powering an ARC-5 Receiver After Long Storage
Kenneth G. Gordon
kgordon2006 at frontier.com
Wed May 21 10:48:58 EDT 2014
If whomever is doing this hopes to "reform" the bad capacitors, I am sorry to
have to tell you, that will not work.
First of all, "reforming" only works with electrolytic capacitors. The bad
capacitors in our favorite receivers are, except for 2 or 3, NOT electrolytics.
Secondly, the reason they fail is that they are filled with beeswax, which is
very slightly corrosive, and the cans are brass.
After 70 years, the beeswax reacts with the brass to form verdigris, that
green crap, which, essentially, shorts the capacitors out.
The only solutions are replacement or restuffing.
In my experience, the few electrolytic caps in the receivers are not always
bad, and when they are, nothing much bad happens.
Ken W7EKB
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