How to wind an end fed halfwave autotransformer.

 

Although I enjoy building and using end-fed halfwave antennas (EFHW), I dread making the autotransformer necessary to match my low impedance transceiver to the high impedance of the EFHW.

However, thanks to this excellent video from Colin (MM0OPX), I have an easy-to-follow tutorial that takes me step-by-step through the entire construction process.  Colin helps you every step of the way until you're done with a sturdy, well-made autotransformer suitable for both low and high power usage.

If you can't see the video, please insert this title URL into your browser search box:  https://www.youtube.com/watch?v=dgk0HtOuE0I.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM/AL0HA).

Here are some comments from Colin (MM0OPX).

Link to the spreadsheet of results https://docs.google.com/spreadsheets/... Demonstration on how to wind an End Fed Half Wave Autotransformer. Check out the Autotransformer in action -    • Build Yourself a Cheap Efficient End Fed H...  

This video demonstrates how to wind an autotransformer for a high-power infed halfwave antenna. The creator explains the process step-by-step, including how to prepare the wire, wind the core, and solder the tap. They also discuss the importance of using a capacitor in the circuit.

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