energy, electricity, Lieben amplifier tube, 1906, exhibit from the exhibition "Electrum", Hamburg Electric Works, Germany, Additional-Rights-Clearences-Not Available

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Size: 4500px × 6316px
Location:
Photo credit: © INTERFOTO / History / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 1900s, 20th, amplifier, century, electricity, energy, exhibit, exhibition, hew, historic, historical, lieben, museum, robert, tube, tubes, vacuum, von