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Western Electric Company's Model 212-D, 228-A & 211-D Amplifying And Modulation Tubes, Used In A...

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SIC870506
Image title
Western Electric Company's Model 212-D, 228-A & 211-D Amplifying And Modulation Tubes, Used In A Number 6-B Transmitter
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Location
Museum of Science and Industry, Chicago, USA
Image description

Number 6-B Transmitter - black and white images of the three tubes that are used in a Model Number 6-B transmitter, which the first one on the left is a model Number 212-D Tube which is used for both modulation and amplifying, one in the middle is a Model Number 228-A which a water-cooled power tube that is used in the final stage of amplification, and the one on the right is of a Model Number 211-D tube which is an amplifying tube. Graybar Electric Company - Distributors Of Western Electric Products

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© Museum of Science and Industry, Chicago / Bridgeman Images
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Largest available format 3483 × 4770 px 4 MB
Dimension [pixels] Dimension in 300dpi [mm] File size [MB]
Large 3483 × 4770 px 295 × 404 mm 3.7 MB
Medium 748 × 1024 px 63 × 87 mm 978 KB

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