Re: 80 meter bpf toroid winding 30 turns givel 4.3 micro Henrys, not 3.8

Bob Benedict, KD8CGH

Your PeakLCR45 measures inductance at a max frequency of 200 kHz. The material in torroid inductors has some frequency dependence. I measure my inductors at the intended frequency of use. Here's one of many articles on using a nanoVNA to measure inductance.

The other point that Allison makes is to check capacitance. I used to just assume that inductors were always the problem.

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