[Hammarlund] Had more flakey micas!
Al Parker
[email protected]
Sat, 14 Jun 2003 11:04:20 -0400
Hi Barry, Phil, et al,
Thanks for that note of encouragement. I had an oscillator module in an
SP-600 that had the problem Phil's having, I took the quick way out &
swapped one out of another rcvr I had, figuring I'd get a round tuit someday
& find some proper dipped micas in the stash. I guess I'll just get that
module & put it near a lite bulb, or on top of a rig, for a week or so. No
hurry, that rcvr is a bit down in the project queue. I'll try to remember
to let you know the results ;-)
73,
Al, W8UT
New Bern, NC
BoatAnchors appreciated here
http://www.thecompendium.net/radio/
http://www.hammarlund.info
----- Original Message -----
From: "Barry L. Ornitz" <[email protected]>>
> This sounds exactly like moisture absorbed in the mica.
> Remember mica is a silicate material in the form of extremely
> thin stacked sheets. Not much moisture (or anything else) can
> diffuse through the sheets themselves. But moisture can
> readily travel between the sheets. If that radio had been
> idle for many years, some of that moisture is inevitable. It
> took quite a while for that moisture to diffuse in, and it
> does not bake out immediately. I would be willing to bet that
> the minor jumps would have stopped after a few weeks of use.
> A hair dryer could probably speed things up a little. Once
> dry, periodic use should keep it that way.