Serge Auckland wrote:

"Jim Lesurf" wrote in message
...
In article , Dave Plowman (News)
wrote:
In article , Iain
Churches wrote:
A four pin miniature Tuchel is a good connector for a balanced phono
cartridge. I have sen them used on several occasions in this
application.

Aren't all phono cartridges - apart from Decca - effectively balanced?

Do any of them include an electrostatic screen linked to one of the leads?
I can't recall any, but the above makes me wonder.

Slainte,

Jim

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The Shure V15II and III have a little brass tag which links the can to the
left ground connection. If the arm has a metal headshell and continuity to
the arm ground wire, then the tag can (should?) be removed. Without the tag,
the cartridge is then balanced. I don't know about other makes of cartridge,
they could well have the can bonded to one pin, in which case they would
then be unbalanced, or rely on the headshell, in which case they would be
balanced. MC cartridges, which don't have any screening usually, would be
balanced devices.

Your'e not distinguishing the difference between balanced and floating.

You might use a floating winding that has no part of it directly
connected to a ground anywhere
to make a balanced connection with an R divider at an amp.

Balanced does not always give better hi-fi.

And balanced was first used in telephones, to reduce noise over long
distances.
Twisted pairs and common mode rejection etc.

It makes little difference to noise over 2 metres if you know how to rig
a normal
unbalanced phono input.

Patrick Turner.




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