On Mon, 15 Mar 2004 07:12:42 -0800, Bill Turner
wrote:

I'd recommend a grid dip meter and a known capacitor, but be sure to
make the test at a frequency well below the self resonant frequency of
the inductor alone.

I'm afraid my experience of using GDMs is *very* unfavourable. They
were fine in the days of big old HF kit, but nowadays with
PCB/surface-mounted stuff, they're *ucking useless.

Another thing to be wary of: Some inductors are wound on a resistor to
reduce the Q for a specific purpose. Be suspicious of any which have an
unusually broad dip.

ISTR some valve anode chokes used this arrangement in HF rigs a couple
of decades ago...

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