"Don Pearce" wrote in message
news:4aa8db1e.1466875@localhost...
On Thu, 10 Sep 2009 11:53:17 +0100, "Keith G"
wrote:


"Don Pearce" wrote


Any deck that supports the record on six points can never be described
as "right". It is a ridiculous thing to do. The record must sag
between the points


This is a joke - right?


Of course not. How could a flexible plastic record not sag between
those suspension points?


Stiffness.


Remember that we are talking thousandths of
an inch to create a big signal, not a sag like a row of bunting. A
record needs to be supported over its whole surface, as flat as
possible.


And yet they are so often not, for one reason or another - without any truly
discernable effect on the sound....