You can still buy rotors and parts he http://www.rotorservice.com/
Norm is a real good guy to do business with.

73 Richard WB8KRN


There is a wirewound pot in the rotator unit which tends to get dirty
and can lead to erratic readings as well. You can clean it pretty well
with a little very fine grit paper, or contact cleaner. It is this
pot which tells the meter which direction the antenna is pointing. I
also saw one which opened up at one end and had to be replaced. That
way way back when, but you should be able to order the part. Replacement
is easy. If you do replace it, give it a little spray of contact
cleaner before reassembling the rotor unit.

Hope this helps...

Irv VE6BP