Transcription of Chapter 14 VACUUM TUBE RECEIVERS AND TRANSMITTERS
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Chapter 14 VACUUM TUBE RECEIVERS AND TRANSMITTERS
1. Chapter 14, Harris crystal sets TO sideband Frank W. Harris 2006, REV 10 Chapter 14 VACUUM TUBE RECEIVERS AND TRANSMITTERS My old-tech QRP project began the day I acquired an ancient type 216A VACUUM tube. It s a wondrous Jules Verne-looking device with a round glass ball mounted on an elaborate nickel-plated brass base. It s the simplest three-element triode with all its guts in plain view. It has the filament in the center with a wire grid and a plate on each side of the filament. The base is imprinted with several patent numbers dating from 1907 to 1918.
CRYSTAL SETS TO SIDEBAND ... VACUUM TUBE RECEIVERS AND TRANSMITTERS My old-tech QRP project began the day I acquired an ancient type 216A vacuum tube. It’s a wondrous Jules Verne-looking device with a round glass ball mounted on an elaborate nickel-plated brass base. It’s the simplest three-element “triode” with all its guts in plain view.
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Chapter 15 THE NOBEL PRIZE FOR SIDEBAND, CRYSTAL SETS TO SIDEBAND, Sideband, POWER SUPPLIES, Crystal sets, VACUUM TUBE RECEIVERS AND TRANSMITTERS, Crystal, HOME-BUILDING AMATEUR RADIO EQUIPMENT, ACCESSORIES, 40 Uses for Germanium Diodes, Sets, Coherent transfer of optical orbital, Multi-order Raman sideband generation