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- Path: newsserver.trl.OZ.AU!rhea!aduncan
- From: aduncan@rhea.trl.OZ.AU (Allan Duncan)
- Newsgroups: comp.sys.amiga.hardware
- Subject: Re: BLAM! Power supply blowout question...
- Date: 11 Jan 1996 03:07:41 GMT
- Organization: Telecom Research Laboratories, Melbourne, Australia.
- Message-ID: <4d1utt$pg@newsserver.trl.OZ.AU>
- References: <1662.6580T934T2608@wvlink.mpl.com>
- NNTP-Posting-Host: rhea.trl.oz.au
-
- From article <1662.6580T934T2608@wvlink.mpl.com>, by gene_heskett@wvlink.mpl.com (Gene Heskett):
- [...]
- > fix whatever dies too, short of a destroyed transformer. And I have seen
- > that! Or to be more precise, I've seen perfectly good windings on a large
- > hunk of ferrite, all molded together with epoxy, but the ferrite was
- > magneticly invisible due to have been warmed above its curie point. Some
- > ferrites have a *very* low curie point, even below boiling water's 100'c.
-
- Doesn't sound quite right - exceeding curie point is a reversible
- feature - unless it has a high applied field when it comes back down in
- temperature when you might end up with a magnet, but the implication is
- that as long as the field is applied, the ferrite is hot - you pull the
- plug and _then_ it cools down.
- I'm prepared to be convinced otherwise, however.
-
- Now air gaps - that is a different matter.
-
- Allan Duncan Photonics & Reference Standards Section
- (+613) 9253 6708 Telstra (formerly Telecom) Research Labs
- Fax 9253 6664 Box 249 Rosebank MDC, Clayton, Victoria, 3169
- Internet a.duncan@trl.telstra.com.au Australia
-