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RE: Two layer primary
That's a fine idea on paper, but making a neat flat spiral out of 1/4"
tubing is enough of a challenge. Winding two turns per layer sounds like an
invitation for frustration!! I think I'm leaning towards gluing lexan
spacer blocks to both sides of the insulating sheet of lexan. I agree with
the tuning inductor.
Regards, Gary Lau
Waltham, MA USA
>Original poster: "Jim Lux" <jimlux-at-jpl.nasa.gov>
>why not wind it as a multi layer coil with 2 turns on each layer.. Here
>a sideways view of the primary with turn numbers.
>I'd seriously consider using an "off axis" inductor for fine tuning too.
>since the scheme below is going to make tapping a bit of a challenge
>center of coil