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...
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...
communication experiments. The spark gap transmitter consisted of an induction coil (I) powered by a battery (B) connected to a spark gap (S) consisting...
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...
