|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
97.32.208.74
In Reply to: RE: So what's the deal with CD demagnetizers? posted by jea48 on May 26, 2016 at 07:07:07
To my knowledge, unless proven otherwise, nobody has ever shown that inks used on CD labels to contain ferrous elements or the aluminum or gold or alloy metal layer in CDs to contain any ferrous elements. Furutech is simply trying to come up with some "reasonable explanation" why their expensive demagnetizer works. It makes no difference to me who they are, manufacturer, whatever. They're not even the first manufacturer of demag devices so please give me a break. Now, unless you can provide one shred of evidence that either the ink is magnetizable or the metal layer is magnetizable I fear we are at an impass. See if you can lift the CD with a powerful magnet. Bet you can't.
Edits: 05/26/16Follow Ups:
It would be SIMPLE to test.
You need a coil of wire, a DRILL (or dremel, better yet) and a DVM.
SPIN the CD at high speed. Hold the coil close to the CD and measure for MV. (Milivolts)
Experiment with orientation of coil. Voltage should be in some way proportional to rotation speed.
Done and done.
Too much is never enough
I get 14mv. It sounds pretty good also when I demag the cd. T
More data needed.
Does voltage RISE with rotation Speed? I would ALSO expect sensitivity to COIL ORIENTATION. This would depend on the SHAPE of the coil. I would use a long coil, with a couple hundred feet of #30 or so magnet wire around a #10 x 2 1/2" machine screw. When I made such a coil for an experiment, I used washers at each end which I had INSULATED with CORK.
Orienting long way with the radius should be a different effect than PERPENDICULAR TO the radius.
Too much is never enough
Yeah PG, That's what I did already. I also tried demagnetizing CD's a long time ago and liked the result. I do it every time before I listen. T
Well, everybody DOESN'T know it works.
And if the CD IS magnetic in some fashion, the voltage generated in my coil experiment should drop a LOT when comparing before and after demagnetization.
Has anyone tried THAT?
Too much is never enough
Everybody and their brother knows it works. The question I posed in the OP is why? Hel-loo!
Post a Followup:
FAQ |
Post a Message! |
Forgot Password? |
|
||||||||||||||
|
This post is made possible by the generous support of people like you and our sponsors: