XIX. THE OPERATION OF VACUUM TUBE TRANSMITTERS

The Operation of the Vacuum Tube Oscillator--The Operation of C. W. Telegraph Transmitters with Direct Current--Short Distance C. W. Transmitter--The Operation of the Key Circuit--The Operation of C. W. Telegraph Transmitting with Direct Current--The Operation of C. W. Telegraph Transmitters with Alternating Current--With a Single Oscillator Tube--Heating the Filament with Alternating Current--The Operation of C. W. Telegraph Transmitters with Alternating Current-- With Two Oscillator Tubes--The Operation of Wireless Telephone Transmitters with Direct Current--Short Distance Transmitter--The Microphone Transmitter--The Operation of Wireless Telephone Transmitters with Direct Current--Long Distance Transmitters--The Operation of Microphone Modulators--The Induction Coil--The Microphone Transformer--The Magnetic Modulator--Operation of the Vacuum Tube as a Modulator--The Operation of Wireless Telephone Transmitters with Alternating Current--The Operation of Rectifier Vacuum Tubes--The Operation of Reactors and Condensers.