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Author Moving magnet / Moving coil cartridges
N Cook

2005-04-16, 3:16 pm

I've been asked by someone, quoted funny money for a
replacement B&O cartridge, to sort out something cheaper.
Looking in a number of Bang & Olufsen Beogram manuals they
never seem to specify whether MM or MC.
Due to small physical size and their stock numbers always seem
to be MMC.... i assume Moving Magnet Cartridge.
I am aware of MM/MC selection switches on phono section of amps
but is there a significant impedance or level or equalisation requirement
that cannot be accommodated by volume & tone controls?
Obviously a large bog standard moving coil cartridge will look
ugly, which he is aware, and I'll have to mount it on the tone-arm above and
set
back from the end of the B&O arm and add counter-balancing
weight at other end. But will it function well enough for
music non-purist ? Any ideas on fairing/ masking so as
to disguise the bulky and bodged appearance. ?

Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse




NSM

2005-04-16, 3:16 pm


"N Cook" <diverse@tcp.co.uk> wrote in message
news:d3gvb1$mhv$1@inews.gazeta.pl...
quote:

> I've been asked by someone, quoted funny money for a
> replacement B&O cartridge, to sort out something cheaper.
> Looking in a number of Bang & Olufsen Beogram manuals they
> never seem to specify whether MM or MC.


Why would you care? I haven't ever seen a MC cart IIRC.
quote:

> Due to small physical size and their stock numbers always seem
> to be MMC.... I assume Moving Magnet Cartridge.
> I am aware of MM/MC selection switches on phono section of amps
> but is there a significant impedance or level or equalisation requirement
> that cannot be accommodated by volume & tone controls?


None I can imagine.
quote:

> Obviously a large bog standard moving coil cartridge will look
> ugly, which he is aware, and I'll have to mount it on the tone-arm above

and
quote:

> set
> back from the end of the B&O arm and add counter-balancing
> weight at other end. But will it function well enough for
> music non-purist ? Any ideas on fairing/ masking so as
> to disguise the bulky and bodged appearance. ?


God's teeth don't do that. He needs to bite the bullet and buy the real
thing - look on eBay, maybe he'll get lucky.
--
N

















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