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2 Jun 2020 07:08:18 UTC
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L match antenna coupler modified to cover 3.5 MHz
Modifying a QRP antenna coupler to cover 3.5 MHz by adding a larger inductor.
Original coupler including circuit https://www.youtube.com/watch?v=JwVuvu-C30c
Toroid coil winding calculator http://www.66pacific.com/calculators/toroid-coil-winding-calculator.aspx
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https://www.youtube.com/watch?v=mpOXL46kVYE
Original coupler including circuit https://www.youtube.com/watch?v=JwVuvu-C30c
Toroid coil winding calculator http://www.66pacific.com/calculators/toroid-coil-winding-calculator.aspx
...
https://www.youtube.com/watch?v=mpOXL46kVYE
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video/mp4
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