Baluns Filters and Chokes

Filters

https://www.qrp-labs.com/bpfkit.html - HF Filters

Coils

Calculating Coil Diamensions
http://www.robkalmeijer.nl/techniek/electronica/radiotechniek/hambladen/radcom/1994/12/page54/

How to construct a loading coil for 80m
http://blog.templaro.com/a-loading-coil-for-80m/

Coil-Shortened Vertical Antenna Calculator
Coil-Shortened Vertical Antenna Calculator

Coil Inductance Calculator
Coil Inductance Calculator

Air Cored Coils

This is a theory based introduction to the air cored coil. http://info.ee.surrey.ac.uk/Workshop/advice/coils/air_coils.html#bsl

Image
Source: http://www.k0bg.com/images/choke/chokechart.jpg



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Glenn Lyons VK4PK
glenn@LyonsComputer.com.au
Ver:gnl280022018 - pre published v0.9