ORIGINAL MESSAGE:
At 12:15 PM 3/10/2006, Scott Townley wrote:
>I could accomplish that with 1/4" tubing or with some existing 2"
>B&W coilstock, but it's only 14AWG. Both will easily give me
>Qo>200. So what's the difference? I'd rather use the coilstock
>(less work for me).
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
My experience tells me that even at the 650 watt level, 14 AWG wire
is marginally too small for a 17/12 meter tank coil. It will run hot
and with a hot coil, you do not want B&W miniductor with it's
polystyrene supports. Even if it appears to work ok for a while,
sometime in the future you may accidentally mistune it (lightly
loaded) and have abnormally high circulating current and the
temperature will go up and the miniductor will go "sproing", a sound
you do not want to hear, trust me, I know.
Best to be conservative with these things. Do it like Alpha would do it.
Bill, W6WRT
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