36 pages matching operator license in this book
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adjusted aircraft ammeter ampere-hour amperes amplifier stage amplitude Ansiver Answer antenna antenna current applied armature audio auto alarm battery broadcast station capacitance carrier carrier wave cathode cause cell characteristics charge choke class C amplifier coil condenser connected coupling crystal current flow cycles detector direct current Draw a simple effect efficiency electrons emission excitation F.C.C. Rules factor filament filter follows formula frequency grid bias impedance increase indicate inductance input intermediate frequency kilocycles load magnetic maximum meter milliamperes mobile station negative neutralization normal Ohm's law ohms operator license oscillator peak permit plate circuit plate current plate tank plate voltage power output power supply quency Question r-f amplifier radio-frequency radio-frequency amplifier radiotelegraph radiotelephone ratio reactance receiver relay resistance resistor resonance secondary shunt signal simple schematic diagram tank circuit temperature tetrode transformer transmission transmitter triode tuned vacuum tube voltage drop voltmeter volts watts wave