Practical wireless telegraphy; a complete text book for students of radio communication (1917)
Bucher, Elmer Eustice, 1885- · New York, Wireless Press, Inc · leaf 218
ed, but,lacking this, the point ofresonance may be some-what difficult to locate. 175. Measurementof Electrostatic Ca-pacity.—(a) Capac-ity at low voltage andaudio-frequencies. Wemay measure the sim-ple electrostatic ca-pacity of a condenseror an aerial by thebridge method of Fig.227. The… … Wjm^ ill Fig. 227—Diagram for the Measurement of Electrostatic Capacity. 208 PRACTICAL WIRELESS TELEGRAPHY. and S are the primary and secondary windings respectively of an ordinary tele-phone induction coil. A buzzer and battery are connected in series with P. Thisapparatus afifords a source of…
Telegraph, Wireless
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