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ID = 28848
United States of America (USA)
Brand: RCA (RCA Victor Co. Inc.); New York (NY)
Tube type:  Half-Wave Vacuum Rectifier   Power-supply 
Identical to UV217 = 217_RCA
Similar Tubes
Other characteristic (electr. data):
  UV217A ; UV217B ; UV217C
First year Mar.1927 Saga of the Vacuumtube, Tyne page 323
First Source (s)
1924 : Saga of the Vacuumtube, Tyne p.323
01.Jun.1922 : RCA Catalog June 1, 1922
Successor Tubes 1921   UV217B   UV217C   UV217A  

Filament Vf 10 Volts / If 6.5 Ampere / Direct / Parallel, (AC/DC)
Description 50-Watt size tube, called Kenotron Rectifier.
DC output 150 W at 1000 V DC. Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
51 x 191 x 51 mm / 2.01 x 7.52 x 2.01 inch
UV217: KoBi
Konrad Birkner † 12.08.2014

Michael Schlör

UV217: Banneitz, TB der drahtl. Teleph. 1927
Anonymous 15 Collector

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