Example image of eyePlorer eyePlorer map for 'Vacuum tube': Amplifier Electricity Electron Electronics Signal (electronics) Switch Vacuum Thermionic emission Electrode Tube socket Glass-to-metal seal Incandescent light bulb Space charge Anode Hot cathode Diode Electric current Black body Cold cathode Neon lamp Transconductance JFET Crookes tube Geissler tube Eugen Goldstein Johann Wilhelm Hittorf Nikola Tesla Thomas Edison Frederick Guthrie Computer High-end audio Process control Radar Radio Telephone Television Solid state (electronics) Transistor Tube sound Cathode ray tube Computer monitor Flat panel display Liquid crystal display Oscilloscope Cavity magnetron Microwave oven Klystron Ultra high frequency Thorium Tungsten
Disclaimer