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ID = 8314
United States of America (USA)
Brand: Common type USA tube/semicond.
Developer: General Electric Co. (GE); Bridgeport CT, Syracuse NY 
Tube type:  Half-Wave Vacuum Rectifier   Power-supply 
  <1925 rare.
Identical to UX216B = CF516B = GSX-216B = MX216B = 216B = PR216B = CX316B = DC216B = Z216B = X216B
Similar Tubes
Normally replaceable-slightly different:
  D416B ; DR-1V
Other base:
First year Sep.1925 Saga of the Vacuum Tube, Tyne page 323.
Predecessor Tubes UV216B  

Base UX-Base (4 Pins (2 thick, USA 1924, UX) (Codex=Bo)
Was used by Radio/TV-reception etc.
Filament Vf 7.5 Volts / If 1.25 Ampere / Direct / Specified voltage AC/DC

Work started on development of this tube at the GE laboratories in the Fall of 1924. The final product had a thoriated tungsten filament and was designated UV216A. It was redesignated and announced as the UV216B in QST in October 1925. This redesignation was to avoid the similarity of the type 216A made by Western Electric at the time. The tube was made by several other companies during its commercial life.

Dimensions (WHD)
incl. pins / tip
x 137 x 54 mm / x 5.39 x 2.13 inch
Weight 67 g / 2.36 oz
Information source Taschenbuch zum Röhren-Codex 1948/49   
  UX216B: Radio College of Canada Rogers 6
Götz Linss † 27.06.21
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UX216B: Sammlung
Anonymous 557 Collector

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UX216B: own collection
Peter den Boer

UX216B: own collection
Peter den Boer

from Just Qvigstad

Usage in Models 3= 1925 ; 1= 1926?? ; 10= 1926 ; 1= 1927? ; 6= 1927

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):21

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