Electronic vacuum tube
Palabras clave
amplifier,
audio,
background,
broadcasting,
bulb,
cathode,
closeup,
communication,
component,
device,
electric,
electrical,
electricity,
electron,
electronic,
energy,
engineering,
equipment,
generator,
glasses,
history,
industry,
isolated,
lamp,
light,
light bulb,
obsolete,
old,
power,
radio,
retro,
single,
supply,
technical,
technology,
television,
transmitter,
transparent,
tube,
valva,
vintage,
white