[R-390] RF Gain Control and Antenna Trimmer

[n4buq at knology.net]

I seem to recall someone on this list having NOS (Allen Bradley?) pots for 
sale that are the correct replacements for the RF gain control.  If that 
person is reading, would you please respond (or if someone knows who that 
was, would you please contact me as well)?  I think I need one.  I think 
mine has a bad area right at the endpoint of travel.  The last 2 or 3 
degrees before it hits the stop causes a nice dip in RF gain.  I may try 
DeOxit, but I think I may already have done that so it may just need 
replacing.

Also, what's involved in removing the housing from the antenna trimmer?  
One of my R390As has a noisy trimmer and I figure I need to clean it's 
innards.  Is it very difficult to get to?  I've had RF decks out many 
times, but never had to address the trimmer.

Thanks!

Barry - N4BUQ