Vintage MONO Cartridge Question ?

How can you completely eliminate the vertical component if the cart has vertical compliance?  Tell the coils not to respond to those movements?

Seems like that's exactly what's attempted, either by connecting stereo MM coils in series, or orienting a coil for lateral movement. Vertical rejection might vary depending on design, but I certainly wouldn't play even a pre microgroove record with a stylus with no vertical compliance.

I believe a "properly" designed mono cart will eliminate objectionable stereo differences between channels and vertical noise will be down at least 30dB.  A mono switch might also give 30dB rejection, but stereo differences will be blended, not eliminated.

It's not possible for any single coil arrangement with vertical compliance to completely reject vertical cantilever movement, Japanese or otherwise. It will generate output from vertical movement.  Look at the spec for vertical rejection.

The adaptation of a stereo cart for mono is designed to cancel vertical output. Once again, look at the spec.

Iopscri,

You might find the answer to your specific question at Lenco Heaven. I saw a number of threads there about those carts.

Regards,