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Thanks for the tips everyone. Unfortunately my first attempt to de tap my MOTs was a disaster and only resulted in me fatiguing the lead til it snapped. Try as I might, I just couldn't get the solder to stick. I think bigger, higher quality MOTs with thicker windings might help, as would doing it before they were covered in oil (of course). I'm currently assessing how I want to go forward on this. Not really sure if I want to go through that again! Sent from my mobile. -------- Original message -------- From: Tesla <tesla@xxxxxxxxxxxxxxx> Date:03/12/2013 2:10 PM (GMT+10:00) To: Tesla Coil Mailing List <tesla@xxxxxxxxxx> Subject: Re: [TCML] 3 phase mot dc coil first light Team Make sure if steel wool in the environment NO little microscopic threads from it in the gubbins, I recommend a glass paper to be sure if you use that method. A hot iron will remove many of the insulation coatings I believe Rids Ted in NZ <SNIP> Wipe of the oil, then take a lighter to the end of the wire and burn off the insulation. Well, it doesn't actually "burn off", but it carbonizes and loses it's structure, which makes it a breeze to scrub off with with some steel wool. Be gentle, because the copper gets soft from the heat. Jon _______________________________________________ Tesla mailing list Tesla@xxxxxxxxxx http://www.pupman.com/mailman/listinfo/tesla _______________________________________________ Tesla mailing list Tesla@xxxxxxxxxx http://www.pupman.com/mailman/listinfo/tesla _______________________________________________ Tesla mailing list Tesla@xxxxxxxxxx http://www.pupman.com/mailman/listinfo/tesla