 Ferrofluid in Tweeters?
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MikeT1982
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Sat Jul 21 2007, 02:01AM
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Registered Member #621
Joined: Sun Apr 01 2007, 12:37AM
Location:
Posts: 119
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I have always been wondering this and just thought of it seeing the Ferrofluid Display post below. I often run across "ferrofluid cooled" tweeters in Radio Shack when they used to sell horn loaded drivers, etc. I once disected small disc tweeters that were claiming to be ferrofluid cooled down to the voice coil, hoping to have a liquid pour out and finally see ferrofluid but it seemed dry!
Mike
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Tesladownunder
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Registered Member #10
Joined: Thu Feb 02 2006, 09:45AM
Location: Bunbury, Australia
Posts: 1424
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The ferrofluid will sit deep in the stongest magnetic field in the gap where the voicecoil goes. It won't "pour out". It may dry out as well. Ferrofluid has a partial pressure of about 1mmHg so it will dry out if not enclosed.
TDU
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