[HAM] Noisy upper rotor motor

[John Freund]

> > Just asking, Joe...where is the mercotac unit in a 147? :)
> part of the leslie motor which engages the rod to the o-ring (but maybe
> I'm not remembering that correctly).

Mercotac is a contraction (if you will) for "Mercury contact".  It's what
allows a rotosonic SPEAKER to spin around without getting wires wrapped
around a pole shaft.

> > Stuff is wearing out in the motor itself.
> then again bearings "wearing out" is kind of rare too....no? (suddenly I'm
> french).
> I suppose it depends on the age/care it's had.

I suppose in my endeavor to be a wise-ass I overstated, but a disassembly
and service are likely.