Gordon Gibby
I'd like to see some LOSS DATA on that Hawaii endfed. It is an autotransformer design, but the concern that I have is that the toroid chosen is iron (type #2) permeability = 10. Using some online calculators, at 40 meters the primary would have about 1.2 microhenries and 50 ohms of inductive reactance. I think you'd rather see the self-inductance many times that of the resistive impedance desired..... Would want to see two built back to back, and losses measured. That test has been humbling to me at times..... my 2 cents worth. If anyone has loss data, would be useful for me to hear.... gordon
On Mon, Feb 17, 2020 at 9:36 PM Ken Hansen <ken@...> wrote:
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