Tuning in which the resonant frequency of a circuit is changed by moving a magnetic core into or out of a coil forming part of the circuit, so as to change its inductance.
Origin
1930s.
Definition of permeability tuning in US English:
permeability tuning
noun
Electronics
Tuning in which the resonant frequency of a circuit is changed by moving a magnetic core into or out of a coil forming part of the circuit, so as to change its inductance.