Practical wireless telegraphy; a complete text book for students of radio communication (1917)
Bucher, Elmer Eustice, 1885- · New York, Wireless Press, Inc · leaf 219
itation by the buzzer B-2. The resulting oscillations are caused toact upon the second circuit of vari-able frequency, L-1, C-x or L-1,C-n.. C-n is a standard variable con-denser calibrated in microfarads,and C-x the condenser, the capacityof which is to be determined. Acrystal rectifier connected… … PRACTICAL RADIO MEASUREMENTS. 209 With the buzzer in vibration, inductance L-1 is varied until resonant response is obtainedin the telephone or when L, C = L-1, C-x. The D. P. D. T. switch is then thrown to C-n,and its capacity altered until circuit L-1, C-n, is again in resonance with L, C.…
Telegraph, Wireless
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