Proceedings of the Institute of Radio Engineers, Volumes 8-9

adjustment aircraft alternating current altho amperes amplifier amplitude antenna circuit antenna current apparatus audibility audio audion C₁ C₂ cable capacity cathode characteristics coil condenser connected constant continuous wave coupling curve cycles detector diagram diameter direct current distance effect efficiency Electric Company electrode energy equation equipment excitation farads feet filament flux flying boats frequency changer grid harmonics heterodyne homopolar illustrated in Figure impedance inches increase inductance input INSTITUTE OF RADIO L₁ L₂ loop magnetic maximum measurements meters method microhenrys modulated mounted Naval Navy obtained ohms operation oscillator output panel patent plate circuit plate current possible potential produced R₁ R₂ radiation RADIO ENGINEERS radio frequency reactance receiving circuit reception resistance resonance secondary circuit shown in Figure signal spark static switch telegraph telephone tests thru tion transformer transmission transmitter tuning vacuum tube vertical voltage volts wave length wire