I saved this originally posted by Ron, AC7AC of this list, I found it very informative, in that " a picture is worth a thousand words" ...thanks Ron
http://emtech.steadynet.com/rm/tinning_200_l.ram Tom WB2QDG K2 1103 ----- Original Message ----- From: "Don Wilhelm" <[email protected]> To: <[email protected]> Cc: <[email protected]> Sent: Monday, January 04, 2010 11:23 AM Subject: Re: [Elecraft] K2 Toroid Wire Coating > Bob, > > You are being too picky - the cores are not conductive. The only thing > to be careful of is shorted turns. I normally tin the leads all the way > up to the core unless there is a reason to leave an insulated lead (as > there is on the KXB3080 LPF toroid L2). > > If you are using a flame, be careful you do not overheat the copper, and > often the residue from a flame will leave a deposit that is difficult to > remove and the solder will not adhere to it - so use only enough heat to > melt the insulation and no more (do not stick the wire directly into the > blue part of the flame). > > Try the solder blob method, it is easier and more clean - use a wide tip > on the iron so it will hold a reasonable blob or solder and turn the > iron temperature up to 800 deg F or more (lower temperatures can lead to > frustration and long times before the lead is tinned). > > 73, > Don W3FPR > > [email protected] wrote: >> For my first several toroid windings, I have used a Bic lighter flame to >> burn off the coating on the wire tails, followed by a sanding with the >> supplied P180 sandpaper. I noticed it can burn up the wire fast and one >> of them >> lost the coating up to the core. Should I recoat, especially where the >> lead may touch the wound toroid, like the horizontal RFC11? What is a >> suitable recoat for the wire? Or am I being too picky? >> >> >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
