DescriptionEB1911 - Induction Coil - Fig. 4.jpg English: Graphic representation of two pendulums Date 1 January 1911 Source 1911 Encyclopædia Britannica...
DescriptionEB1911 Telegraph - Magneto-Induction Method.jpg English: If a primary circuit, consisting of a large coil of wire P, has in circuit a battery...
communication experiments. The spark gap transmitter consisted of an induction coil (I) powered by a battery (B) connected to a spark gap (S) consisting...
a coil of one turn with the other spark ball of a discharger S. These spark balls are connected either to the secondary circuit of an induction coil I...
an inductance coil and a spark gap, and oscillations are excited in it by discharges created across the spark gap by an induction coil or transformer...
DescriptionEB1911 Telegraph - Lord Kelvin's early Siphon Recorder.jpg English: The original form of the siphon recorder (telegraphy instrument), for which...
