[R-390] Cosmos Drift

[Jon]

Hello to the group, hope everyone is having a great summer.

If I had to write about my summer vacation at 44, I would tell the class how
I performed major surgery on a Cosmos PTO. How every night I turned 40
screws,that are the size of an ant with a homebrewed tool, which sometimes
caused havoc in restricting the turning of the shaft to messing up the end
points, to interaction between other cal points, how I must of taken apart
that $#%#$ thing 14 billon times. It is truly amazing that it is still
working. Sorry, I had to get that out of my system. Now I was curious on
what I will call long term drift. After installation of the PTO into the
radio with it connected to a freq counter, I let it warm up for 48 hours
before I cal'd it. After which, I brought it back to the set point in this
case, 3.455000Mhz and let it sit. It is now over 3 days and the PTO has
drifted over 1000Hz increasing in frequency. It seems to me that it will not
settle out like I thought it would. I was wondering if anyone else has
experienced this or knows any 'quick' remedies. I would appreciate any
comments at all. Thanks for the bandwidth!

73,Jon