A direct-reading instrument for measurements of inductance and Q of ferrite core coils

A resonant circuit consisting of a coil to be tested and two capacitors in series, one of which is fixed and the other variable, is used to permit the direct readings of the inductance and
Q
by prototype instrument was built that could measure the inductance from 200 to 400 μH and
Q
values up to 400 at 796 kHz.