[R-390] Fix for ZERO ADJ.

K PERALES kenperales at comcast.net
Fri Mar 1 14:11:36 EST 2019


Has there been anything written about repair of the ZERO ADJ., when it does not seem to release the clutch to zero the kHZ dial setting.  I am off from 1 to 3 kHZ over the full range of 0 to 32 MHz which is probably more than just the zero adjust but I cannot do even the basic adjustment on any calibration point from top to bottom.  Looking down inside the front panel, I can see shaft turning and as it gets close to the stop point turning clockwise, I can see what I assume is the clutch plate just barely moving.  I have looked through many of the instruction manuals I have but seen nothing about repairing the ZERO ADJ.  I am guessing that someone out there has repaired this at some point.


Ken Perales



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