Ok, that is interesting. Thanks
In a message dated 7/23/2012 5:28:56 P.M. Eastern Daylight Time,
k7fm@teleport.com writes:
"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
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