Practical wireless telegraphy; a complete text book for students of radio communication (1917)
Bucher, Elmer Eustice, 1885- · New York, Wireless Press, Inc · leaf 60
60-Simple Power Qrcmt \,ro\i^n and can only be established when a new lamp is substituted for the burnt one. Since the potential across the entire bank oflamps is 550 volts, and the current Yz ampere, the bank of lamps would require Y^ X 550 =: 275watts or a little more than J4 K. W. A third…
Telegraph, Wireless
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