[Hammarlund] Cleaning SP-600 coil fingers, lube question?

[Phil Atchley]

Hi.
Today I am continuing on the alignment of the SP-600.  I've run into some
frequency instability on the highest band, especially at the top end.  This
isn't gradual shifts but "jumps" in frequency.  I've "double checked and
cleaned" the tuning capacitor sliding contacts to no avail.

I 'think' it may be due to the fingers on the coils and am cleaning them
with deoxit and a paper towel, hoping that will cure it.  Many of the
contact fingers are oxidized black and it's taking some vigorous scrubbing
with the towel to clean them (I' not using any abrasive as I don't want to
take off any more "silver" than is already gone).

Question.  Is it ok to VERY lightly lube these critters?  I have a tube of
"Ox-gard" used to enhance electrical connections, antenna assembly etc.  Is
it usable for this or NOT RECOMMENDED?

73 de Phil  KO6BB

****************************************************
*  Chasing NDB's (Non-Directional Beacons)with ... *
*  RECEIVERS:                                      *
*    Homebrew Longwave "Hybrid" CW receiver.       *
*    Yaesu VR-5000 Wideband, "DC to Daylight".     *
*  30dB Gain Low Noise Tunable Preamp as needed.   *
*  ANTENNAS:                                       *
*    Coil Loaded 18.5 Meter Long Sloper.           *
*    Roof mounted Hustler 6BTV 6 band Vertical.    *
*    Scantenna Scanner antenna at 7 Meters high.   *
*  LOCATION: Merced, Central California.           *
*  COORDINATES: 37.18N  120.29W  CM97sh.           *
****************************************************




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