Link Coupling Nomogram

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Link Coupling Nomogram

by KirtB » Wed Jul 26, 2017 8:02 am

Link Coupling Nomogram, January 1969 Electronics World

This nomogram (aka nomograph) provides a 'simple' method for determining the coupling coefficient (ke) of air core transformers for RF circuits where the operational wavelength is much longer than the physical length of the transformer. Modern circuit simulators can calculate such quantities at the blink of an eye, but in 1969 there was no simple method for doing it. In fact, a lot of design work back in the day was done using nomograms because given all the impreciseness of circuit layout and component tolerances, there were enough tunable elements provided ...