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ID = 28847
United States of America (USA)
Brand: RCA (RCA Victor Co. Inc.); New York (NY)
Tube type:  Half-Wave Vacuum Rectifier   Power-supply 
Identical to UV216B
Similar Tubes
Normally replaceable-slightly different:
Other base:
First year Sep.1925 Saga of the Vacuumtube, Tyne page 323
Predecessor Tubes UV216   UV216A  
Successor Tubes UX216B  

Base UV-Base (4 Pins+Bayonet, USA 1914 WE)
Filament Vf 7.5 Volts / If 1.25 Ampere / Direct / Parallel, (AC/DC)

Brandname: Kenotron

Literature Saga of the Vacuumtube, Tyne   p.323
UV216B: own collection
Peter den Boer


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