"Phil Allison" wrote in message
...

"Arny Krueger"

A test record shouldn't be able to go off-centre. All of
mine are drilled small, and are a very tight fit on the
spindle.

Who says that the hole was necessarily drilled or punched in the right
place?

Where else do we get 0.55 Hz FM from?


** A defective belt will do that to a 33.3 rpm table.

Wouldn't the length of the belt have to be a multiple of the circumference
of the sub-platter (or whatever the belt goes around) for that to be a
cause?