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Old October 16th 08, 01:13 AM posted to rec.radio.amateur.homebrew
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Posts: 87
Default Switching power supplies question.

Wet... well, I wouldn't pass them up!

I've salvaged a few pieces of gear from floods.
My most cherished HP RF sweep generator came out
of the mighty Mississippi river flooding in the
early 90's. First I carefully brush off the gunk
while washing with tap water. Then I flush with
DI or distilled water dry with a fan. Finally flush
with anhydrous isopropanol and dry with gentle warming.
After that a bit of lubriplate on any switch detents
or gears as needed. I take some things out first for
special treatment, like meter movements.

The distilled water flushes off the stuff we worry
about, ionic contamination and the alcohol removes
the water. At least that's what I hope for.

I'm trying to reform and not drag so much junk home.
Sometimes I can even pass up junked hardware without
flinching. With technical books of any sort I'm not
having much success resisting though.

Mmm! Free firewood. Which reminds me, I need to fill the
wood shed yet. Oak wilt disease is killing my trees but
at least I'll be warm.



terry wrote in news:01a69e21-6f4f-472a-9865-
:

.
Hi Grumpy: Nags me too!!!!!! (OK spot the pun?)

But got to go; to unload my pickup of a free load of firewood got
yesterday (couldn't say no to a second free batch in a week)!

Gee there were two old SPS supplies lying there too; probably all
soaking wet! I didn't even look at the old 14 inch TV lying there as
well in the junk pile.


 
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