[R-390] Lubricant for R-390A/URR

Robert Simpson [email protected]
Sun, 08 Sep 2002 18:49:02 -0700


I have recently taken my receiver out of storage and took it thru a very
slow power-up using a variable transformer - watching very closely for
smoke.  All went well and simply touching a short piece of wire to the
antenna brought in WWV at 10 mhz quite clearly.  It had been in storage for
about 8 years - in a heated and air-conditioned environment.

I noticed, however, that the KHZ operated smoothly but made a sqeaking
sound.  Past unpleasant experience with commonly found household lubricants
left a messy varnish-like residue which was very difficult to remove.  Any
ideas on what might be a good lubricant?  The cams are dry.

Also, the gears themselves had a white grease on them when my receiver was
initially obtained.  Is there a special lubricant for this?  Where can it
be obtained?  Is there an alternative?

Thanks

My receiver: R-390A/URR made by Capehart SN: 1070 (mostly).  It has been
thru the Depot Maintenance System so the set isn't "pure".

Bob Simpson (an amateur radio operator wannabee) 
[email protected]