Qrp Gaijin’s version of a dip meter to measure resonator Q:
A highly-sensitive, narrow-band frequency-modulated dip meter offers a simple way to measure resonator Q.
I have been working with an unusual dip meter circuit recently that has some interesting properties.
The dip meter, also called a grid dip meter, is a simple homebrew instrument that offers a wide range of measurement possibilities.
More details on Qrp Gaijin’s blog.
Check out the video after the break.