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Some of the oval 300 ohm line, at least, was filled with PE foam. I
think this was intended to keep the water out. Roy Lewallen, W7EL Reg Edwards wrote: Has anyone ever measured the velocity factor of the twin feeder in which the support for the wires is in the form of a plastic tube? I would guess the VF is quite high. There is no insulation directly between the wires. ---- Reg. |
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