The principles underlying radio communication (1922)
United States. National Bureau of Standards, Ould, Richard Sheldon, 1889-, United States. Army. Signal Corps · Washington, Govt. Print. Off. · leaf 231
Fig. lis 3ooV. Illlll DynAmoTbr connection.3 for conversion -from lo to 3oo Volta FlQ.I3>& Lew Vo)ta£« Doo ble current ^enerAtor•for low and hi^n voltage … o* rti&HVoltafce 5 - 3h«jnt coi li D- Differentidl coils Re^, - Automatic r^uldor motor. An application which will occur to the radio studentis the securing from batteries giving only 10 or 12 volts of the300 or more volts required for supplying the plate potential ofelectron tubes used as…
Telegraph, Wireless · Radio
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