Vacuum electronic lamp isolated on a white.

Keywords:

amplifier, anode, audio, background, bulb, cathode, closeup, communication, component, design, device, diode, electric, electrical, electricity, electron, electronic, energy, engineering, equipment, glass, history, industry, isolated, lamp, obsolete, old, pentode, power, radio, retro, science, stereo, style, supply, technical, technology, television, transmitter, triode, tube, vacuum, valve, vintage, wave, white,