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90 dial shaft slippage
morzh
Odobenus rosmarus
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Posts: 16,376
Threads: 573
Joined: Oct 2011
City: Jackson State, Province, Country: NJ
#1

12-30-2013, 05:24 PM
In 90 the dial is rotated by its inner wheel rim being sandwiched between two brass bushings through which the dial shaft goes. The bushing that is further from the knob is spring-loaded and this I guess makes them squeeze the wheel and make it rotate.

I have slippage only in one particular spot and only when rotated CCW.
I do not want to disassemble the whole thing plus it is riveted and not really adjustable. I will try to clean it with alcohol to make sure there is no grease or anything slippery there.
But if this does not help, what do you guys usually put there to increase traction? Rosin comes to mind but I have none.

   
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  1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration