"Don Pearce" wrote in message
et
Arny Krueger wrote:
"Jim Lesurf" wrote in message

Just posting to let people know that audiomisc.co.uk now
includes a web version of the 4th article in my recent
HFN series on LP. This one provides measured results for
the old Shure V15/III and compares it with some modern
MM carts. Also has some close up photos of each stylus,
etc.

With no exact link, it took me about 5 minutes to
actually find the page. :-(

The URL is
http://www.audiomisc.co.uk/HFN/LP4/NewLampsForOld.html Once there, it was
an interesting read. No surprise, the
Shures had far better technical performance than the
rest. I'm kinda surprised you didn't try to find the optimal
load for the cartridges.

Here are some tests I did some years back. Not nearly as
thorough or as rigorous, but similar results insofar as
they can be compared: http://www.pcavtech.com/play-rec/rega-2/index.htm .

Other published LP tests are hard to find, but I did
find this:
http://www.hometheaterhifi.com/featu...rts-6---8.html

There are also some postings of test record
transcriptions at

http://delback.co.uk/turntable_tests/

For grins, you might try to extract some frequency
response information from them.

The Linn Sondek in that last link has the most fearsome
wow (about 0.3% RMS) - bad enough to be a real fault, I
think.

The dual peaks at 2919 and 2940 Hz suggest a modulation frequency of about
10 Hz. Is there a 600 rpm motor in there some place? If so, is its shaft
bent, the pully off-center, or ?????

Frequency responses are all over the place too -
about 9dB slope from low to high.

Thanks for confirming my findings.