In article , Jim Lesurf
wrote:

If no-one can find one, I'll go to the source and ask Ortofon. They
might also find this amusing. Although sadly, 30+ years too late to
matter.

Alas, it seems that Ortofon sold off their electronics section and the
people involved retired ages ago. So this looks like being another area of
engineering history which is being forgotten and may pass undocumented if I
can't find the details somewhere! :-/

Jim

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