XV. OPERATION OF VACUUM TUBE RECEPTORS

What is Meant by Ionization--How Electrons are Separated from
Atoms--Action of the Two Electrode Vacuum Tube--How the Two Electrode
Tube Acts as a Detector--How the Three Electrode Tube Acts as a
Detector--How the Vacuum Tube Acts as an Amplifier--The Operation of a
Simple Vacuum Tube Receiving Set--Operation of a Regenerative Vacuum
Tube Receiving Set--Operation of Autodyne and Heterodyne Receiving
Sets--The Autodyne, or Self-Heterodyne Receiving Set--The Separate
Heterodyne Receiving Set.

XVI. CONTINUOUS WAVE TELEGRAPH TRANSMITTING SETS WITH DIRECT CURRENT

Sources of Current for Telegraph Transmitting Sets--An Experimental
Continuous Wave Telegraph Transmitter--The Apparatus You Need--The
Tuning Coil--The Condensers--The Aerial Ammeter--The Buzzer and Dry
Cell--The Telegraph Key--The Vacuum Tube Oscillator--The Storage
Battery--The Battery Rheostat--The Oscillation Choke Coil--Transmitter
Connectors--The Panel Cutout--Connecting Up the Transmitting
Apparatus--A 100-mile C. W. Telegraph Transmitter--The Apparatus You
Need--The Tuning Coil--The Aerial Condenser--The Aerial Ammeter--The
Grid and Blocking Condensers--The Key Circuit Apparatus--The 5 Watt
Oscillator Vacuum Tube--The Storage Battery and Rheostat--The Filament
Voltmeter--The Oscillation Choke Coil--The Motor-generator Set--The
Panel Cut-out--The Protective Condenser--Connecting Up the
Transmitting Apparatus--A 200-mile C. W. Telegraph Transmitter--A
500-mile C. W. Telegraph Transmitter--The Apparatus and Connections--
The 50-watt Vacuum Tube Oscillator--The Aerial Ammeter--The Grid Leak
Resistance--The Oscillation Choke Coil--The Filament Rheostat--The