"Don Pearce" wrote in message
et
Arny Krueger wrote:
"Arny Krueger" wrote in message

"Don Pearce" wrote in message
et
Arny Krueger wrote:

http://delback.co.uk/turntable_tests/
For grins, you might try to extract some frequency
response information from them.

The Linn Sondek in that last link has the most fearsome
wow (about 0.3% RMS) - bad enough to be a real fault, I
think.

Correct that. The predominate jitter frequency seems to
be 0.55 Hz - off-center record.

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?