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Measuring Unloaded Q and Loaded Q of Plate Tank Pi Networks for Ham Radio Transmitters

ElPaso TubeAmps Guide 4 months ago

Description

This is an attempt to show how to use a signal generator and a spectrum analyzer - I assume you could use the TinySA units successfully and even NanoVNAs. I found measuring the Unloaded Q easy with the NanoVNA using S21 and logmag but I had trouble measuring the low values of loaded Q with the NanoVNA.