Elementary telegraphy : a manual for students; written specially to meet the requirements of the ordinary grade of the subject as published in the syllabus of the city and guilds of London Institute (1910)
Pendry, H. W. (Henry Walter) · London ; New York : Whittaker & Co. · leaf 172
ered :— Fig. 135. Wheii key depressed there is an initialimpulse of the current charging the condenser before thecurrent passes through the resistance R. The E.M.F. - 1+ R -^H iH Fig. 135.—Conilenscr charge and discharge—1. applied to the plates of the condenser varies according tothe resistance in… … Fic. 13G.—Condenser charge aii<l discharge—[[. difference between its terminals and tlie plates of thecondenser. The repelled + impulse passes to the negativepole of the battery. When the key is released the twoplates of the condenser discharge through the resistanceand neutralization results.…
Telegraph
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