[R-390] capacitor analysis--deoxit

[John KA1XC]

Todd,
that was probably me, amongst other things I treated a 390nonA IF bandwidth
switches w/
the 5% Deoxit spray which got into the moving phenolic sections, then I used
an alcohol based electronics cleaner from VIP automotive supply to flush it
out. Then I dipped a toothpick into the Deoxit and applied it just to the
electrical contacts.

I'm not sure if the phenolic actually "swells", it seems more like it
"rubbed" with the Deoxit. After I flushed it out the recovery seemed
instantaneous, it definitely moved better when dry.

Acetone is one of my favorite solvents but is too strong to use as a "bath"
cleaner; I use a commercial pump bottle which dispenses just a little bit
and then wet a Q-tip with it.
Mineral spirits works good as a general cleaner, but takes longer to dry.

John



> BTW, someone mentioned having the problem of a swelled wafer switch from
DeOxit
> and used a different chemical to remove it. Can't recall what it was -
mineral
> spirits? Acetone?
>
> 73 de Todd/'Boomer'  KA1KAQ
>