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Has anyone used a VNA to set up taps on an amplifier tank circuit or
used one to set up taps on a coil in a transmatch? Maybe a small capacitor on the anode lead instead of the finals to match capacitance and then measure from the output of the amplifier with antenna relays in "on" position. (no other power to the amp ![]() I am thinking that the caps can be set to expected mid band capacitance for each band. Then work on the inductor taps to get the plate impedance. Or should I just measure the inductor and make the taps based on the inductance measurement? It seems that if the tank circuit parts were in place the taps would be more accurate. I am looking for a tutorial for non engineer types. (tards ![]() or a simple explanation. Step by step would be nice. This is the hard part about making an amp? right? I mean besides the drilling and metal cutting, and locating parts. Maybe others might be helped as well by a good explanation. Jim n2go |