I like tuned loop antennas for AM BCB as well as for NDB chasing. I have a 45 inch on a side box 8 turn loop wound with
#12 magnet wire and also use it as a crystal radio set. A good tuning capacitor is essential. I recently was given a Comet vacuum variable
8 to 1000pf capacitor and it is great for tuning the loop. Very sharp tuning and no need for a vernier. Better Q than my air variables for the BCB band as the tuning peak is sharper and the signal is stronger.
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?I am glad it was free. They are expensive capacitors!
