Catalogue
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American-Type Radio Tube, USA, 20th Century
Inventory Number: 93609
Date: 20th Century
Maker Details: Unknown
Inscription: "65 / 21 / 59" handwritten in ink on label stuck on exterior surface of bulb.
Size: 110 mm in overall length (including base pins)
Materials: Glass, brass, plastic?, assorted metals.
Other Given Number(s): Christie's 213, 127 (white tag).
Notes:
American Radio Tube (or Valve) with large glass balloon, brass-plated white plastic? base and four brass base pins. Base slightly damaged and corroded. With small anode mounted vertically in interior of bulb. Possibly c. 1930s. Previously catalogued with assorted other valves.
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