Robison's Manual of radio telegraphy and telephony for the use of naval electricians (1918)
Robison, S. S. (Samuel Shelburne), b. 1867, United States Naval Institute, Todd, David Wooster, Hooper, Stanford Caldwell · Annapolis, Md. : The United States Naval Institute · leaf 132
of successive waves may be ofsuch a nature as to produce sound by slower variations in the rise and fallof the received current. The transmitting telephone may be in the arc circuit instead ofthe aerial as shown, or it may be inductively connected to either the openor closed circuit. There is as… … Fig. 62d.—Radio Telephone Set. 128 MANUAL OF RADIO TELEGRAPHY AND TELEPHONY. LIMITATIONS ON WAVE LENGTHS. 184. A certain amount of inductance is necessary in the closed circuitin order to transfer energy to the open circuit, whether the circuits aredirect or inductively coupled. Since condensers of…
