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Old 10th December 2003, 01:31 PM   #1
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Default TT cartridge observations

Hi there, I recently bought a new cartridge for my rega3, I had an elys and replaced it with a super elys last night.
(the super elys sounds great in my new DIY system now!).
Out of curiousity I brought my old elys and an old audio technica into work to examine under the microscope here, the diamond tip seems to be in good condition, but I found one thing puzzling.

The tip and the surrounding areas are coated with this white to slightly brown "dust" and what looks like extremely fine fibres. What is this dust etc? Is it shredded vinyl from LP's or is it crud that has accumulated in the record grooves and been displaced by the cartridge needle?
Anyone have any idea?

Chris
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Old 10th December 2003, 01:45 PM   #2
sreten is offline sreten  United Kingdom
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Like this ?

http://www.recordcollectorsguild.org...croscopy4.html
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Old 10th December 2003, 01:48 PM   #3
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Thumbs up Yes

Except the dust etc is spead not only all over the tip, but also the cartridge body near the tip.

Chris
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Old 10th December 2003, 01:54 PM   #4
sreten is offline sreten  United Kingdom
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The white stuff could be fungus !

http://www.recordcollectorsguild.org...croscopy3.html
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Old 10th December 2003, 01:57 PM   #5
sreten is offline sreten  United Kingdom
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If you've got dust all over the cartridge body,
your not using a carbon fibre brush, naughty !

/sreten.
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Old 10th December 2003, 01:59 PM   #6
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Unhappy You're right

I lost my carbon brush ages ago, plus I always found it difficult to actually remove the dust and stuff from the record, the brush just pushed it around and around.
I keep mean to put together a liquid record cleaner using IPA, I already have some of the parts, perhaps this is a good time to make more effort to get it finished....

Chris
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Old 10th December 2003, 02:06 PM   #7
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Cool DUST

Hi,
I have worked as an electronmicroscopist on the University. I prepared my samples under binoculars and we worked in a "semi dust free" room. Nevertheless I saw a lost of dust through my binoculars and even more on the electronmicroscope. The microworld is really amazing.
The tip of the diamond is clean though and that is what matters. I have also seen static build up on cartridges due to poor or non grounding. I have seen many tips hidden in a hay-barn as we called it in the shop examining tips for customers.
Good luck with your cartridge.
And keep your tip clean
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