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Units and Ohms Law Resistance Laws Heating Effects of Currents
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adjusted alternating current amount amplitude amplitude modulation antenna applied audio battery C-bias called capacitance carrier wave cathode cathode-ray tube CHAPTER charge circuit of Fig Class C amplifier coil conductors connected constant coupling crystal cuit current flows cutoff cycles per second deflecting plates detector diode direction electric field electrons energy equal feedback Figure filament filter gas-filled grid voltage half-cycle half-wave harmonics hence high frequencies impedance increase inductance light load loop magnetic field maximum metal meter microphone modulation negative ohms operation oscillator output voltage parallel pentode phase plate circuit plate current plate voltage positive potential pulses push-pull quency R-C coupled r.f. amplifier radiation radio frequency radio wave ratio reactance receiver rectifier resistance resistor resonant screen secondary shield shown in Fig shows signal stage tank circuit thyratron tion transformer transmitter triode tuned ultra-high frequencies vacuum tube velocity vertical vibration volts wave-form wave-length wire zero