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On Sat, 2005-02-19 at 22:17, Jim Adney wrote: > > There's a wire in there, with the ceramic powder packed around it as an > electrical insulator. The central wire and the outer shell are connected > together at the end, and that junction, which is between two different metals, > is the thermocouple junction. That part generates a voltage when the tip is > heated. I happened to be thinking about what to make that gasket out of, when I had to replace a thermocouple on an oven at work. I saved the bad one, and there we go. I don't throw any of them away anymore. -- Russ Wolfe '71 FB AT '66 FB MT '64 T34 (not running) '65 T1 (not running) russw@classicvw.org http://www.classicvw.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~