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249B

Information - Help 
ID = 6849
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Half-Wave Mercury-Vapor Rectifier   Power-supply 
Identical to 249B
Similar Tubes
Normally replaceable-slightly different:
  249A ; 249C
Other base:
  258B

Base UX-Base (4 Pins (2 thick, USA 1924, UX) (Codex=Brr) Top contact with a cap.
Filament Vf 2.5 Volts / If 7.5 Ampere / Direct
Description Amperex, Taylor and WE known manufacturers.
Amperex and WE claim 7.5KV PIV, 640mA; Taylor claims 10KV PIV. 
Tube prices 1 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   
Babani, International Radio Tube Encyclopaedia   
Tube Lore (I)
 
249.jpg
249B: H.S.
Hermann Scharfetter

 
249b_sock.png
249B: Tabu Röhren-Codex, 1948
Anonymous 15 Collector

 
249b_1.png
249B: Manufacturer's Literature
Emilio Ciardiello


from Just Qvigstad

Usage in Models 1= 1937?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1


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