To: | <Gudguyham@aol.com>, <amps@contesting.com> |
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Subject: | Re: [Amps] Forms for air wound coils |
From: | "k7fm" <k7fm@teleport.com> |
Reply-to: | k7fm <k7fm@teleport.com> |
Date: | Mon, 23 Jul 2012 14:29:07 -0700 |
List-post: | <amps@contesting.com">mailto:amps@contesting.com> |
"Other than ceramic, can anything else be used as a coil form?" I just built a TNT transmitter (Tuned plate Not Tuned grid), using a type 10 tube. The coil form is 3 oak dowels I turned on my lathe. The old method of making these rf proof was to "boil" them in paraffin, but I cheated and used spar varnish. I have seen similar forme made using glass. Cut up a wine bottle and use that as a coil form. It will add class to the rig. 73, Colin K7FM _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps |
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