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Groups > sci.electronics.design > #446409
| From | "Tim Williams" <tiwill@seventransistorlabs.com> |
|---|---|
| Newsgroups | sci.electronics.design |
| Subject | Re: E55 Ferrite transformer and Litz wire |
| Date | 2017-02-06 08:17 -0600 |
| Organization | A noiseless patient Spider |
| Message-ID | <o7a0fb$jat$1@dont-email.me> (permalink) |
| References | (1 earlier) <o72jkv$23c$1@cherry.spenarnc.xs4all.nl> <1c7fd4e0-0819-40f1-aaee-7598d90e5386@googlegroups.com> <o73ai1012r6@drn.newsguy.com> <o74pcq$kt2$1@dont-email.me> <hc_lA.196424$yv3.137931@fx30.am4> |
"Chris Jones" <lugnut808@spam.yahoo.com> wrote in message news:hc_lA.196424$yv3.137931@fx30.am4... > You can also do it by heating the wire to red heat and then rapidly > plunging it into alcohol (ethanol, methylated spirits etc.) whilst still > red hot. If the wire has insufficient heat capacity to stay red hot long > enough to do the above, then you can wrap it with some other copper wire > just to increase the thermal mass. The added wire may get welded to the > Litz wire if you heat it too much. That may or may not be a problem. Hmmm. That might work for modern enamels -- don't think it'll work for my particular example, which looks like it turns to glassy carbon on heating. (Which means it'll take a lot more heating to get it to oxidize to bare crusty copper.) As for the active ingredient -- copper-catalyzed oxidation of light spirits (methanol, ethanol, acetone, etc.) is really cool to watch, and it does indeed produce a solderable surface that was (briefly) at red heat! I'm surprised the chlorate doesn't burn the copper too, but hey, go figure. I'll take what I can get. :) Additional hazard warning: definitely don't combine the two methods, and, say, accidentally plunge roiling, molten chlorate into a vat of alcohol. ;-D Tim -- Seven Transistor Labs, LLC Electrical Engineering Consultation and Contract Design Website: http://seventransistorlabs.com
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Re: E55 Ferrite transformer and Litz wire albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2017-02-03 19:54 +0100
Re: E55 Ferrite transformer and Litz wire jrwalliker@gmail.com - 2017-02-03 15:06 -0800
Re: E55 Ferrite transformer and Litz wire Winfield Hill <hill@rowland.harvard.edu> - 2017-02-03 17:25 -0800
Re: E55 Ferrite transformer and Litz wire "Tim Williams" <tiwill@seventransistorlabs.com> - 2017-02-04 08:47 -0600
Re: E55 Ferrite transformer and Litz wire Chris Jones <lugnut808@spam.yahoo.com> - 2017-02-06 23:43 +1100
Re: E55 Ferrite transformer and Litz wire "Tim Williams" <tiwill@seventransistorlabs.com> - 2017-02-06 08:17 -0600
Re: E55 Ferrite transformer and Litz wire Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2017-02-06 20:11 +0200
Re: E55 Ferrite transformer and Litz wire Okkim Atnarivik <mikkivir@gmail.com> - 2017-02-06 06:12 -0800
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