SB-300 LMO warble

[Bill Evans]

I am rebuilding a SB-300 and the LMO is erratic when tuning.  It is
stable when I am not tuning,  With my frequency counter on the output,
I watch it jump around plus and minus 20-50 Hz as I tune.  Since it is
a slug-tuned coil, what can I do to make it smooth again?
Thanks for the help.

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