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On 10/06/03, James L Wolf wrote:

>    Can a cartridge wired this way produce a stereo signal reflecting
> right and left groove walls? Or does any stereo cartridge rely on
> vertical movement? Thanks.

The coils in a stereo cartridge are at 45 degrees, so each describes one
wall of the groove.

A transformer-based circuit for deriving sum and difference signals is
in various books, but nowadays it would be easier to digitise the
signals. Then you can invert one and subtract.

Regards
--
Don Cox
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