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Amplifier tube for telephone and radio. Invented by Robert von Lieben (1878-1899).
Location
Technisches Museum/Vienna/Austria
Unique Identifier
ART35876
Type
Image
Purpose
Public
Size
3188px × 4000px
Photo Credit
Erich Lessing / Art Resource, NY
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Tags
19th century CE
Engineering
Invention
Lieben, Robert von (1878-1899)
Radio
Science
Scientific Instrument
Telephone