Jim Lesurf wrote:

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** Mike Rivers is a credible enough guy.

So as expected, is uses powerful ( likely Neodymium ) magnets.

There has to be a second rotating table under the main one, out of
sight.

My curiosity is WRT the level of field the cartridge is exposed to, and
what effect that might have.


** Lotsa folk have though of that - hence one hears remarks about using a crystal PU.

Many things are not speced, like W&F, so it is no surprise that the mag field above the platter is not either.



..... Phil