(b) (Elec.) Any of various apparatus for exhibiting or utilizing the effects of resonance in connection with open circuits, as a device having an oscillating circuit which includes a helix of bare copper wire, a variable number of coils of which can be connected in circuit with a condenser and spark gap excited with an induction coil.
(a device having an oscillating circuit; can be connected; ) (a device having an oscillating circuit; spark; gap excited with an induction coil) (a device; having; an oscillating circuit which includes a helix of bare copper wire, a variable number of coils of which) (gap; excited; with an induction coil) (an oscillating circuit; includes; a helix of bare copper wire)
a device having an oscillating circuit a device having an oscillating circuit a device gap an oscillating circuit
can be connected spark having excited includes
gap excited with an induction coil
an oscillating circuit which includes a helix of bare copper wire, a variable number of coils of which
with an induction coil
a helix of bare copper wire