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SX200A

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ID = 25445
       
Country:
United States of America (USA)
Brand:
Developer: General Electric Co. (GE); Bridgeport CT, Syracuse NY 
Tube type:  Gas Triode   Detector 
Identical to SX200A = UX200A = D400A = 00A = TC200A = 200A = 5VD_vanHorne
First year May.1926 Radios von gestern, 2. Auflage + Tyne page 316
First Source (s)
Apr.1926 : Saga of the Vacuum Tube, Tyne
Base UX-Base (4 Pins (2 thick, USA 1924, UX)
Was used by Radio/TV-reception etc.
Filament Vf 5 Volts / If 0.25 Ampere / Direct / Battery =
Description

In 1925 (Stokes page 17) RCA replaces the UV200 with the UX200.
Tyne: In May 1926 RCA announces the UX200A as a new detector tube, replacing the UX200. The UX200A contains caesium vapor isntead of argon gas of the UV200 and UX200 to get a much more stable operation and increase of sensitivity. The UX200A has a thoriated filament but at that time, 1926, was already outdated and only being used as replacement for UX200 (EE).

 
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip		 x 108 x 47 mm / x 4.25 x 1.85 inch
Weight 47 g / 1.66 oz
Information source -- Collector info (Sammler)   
Babani, International Radio Tube Encyclopaedia   
ux_base_standard~~215.png SX200A: Fin Stewart
Fin Stewart

Just Qvigstad 		sx-200-asylvania.png
SX200A: Vintage Electronic catalog
Geri Meier
More ...
 
sch_sx200a~~1.jpg

SX200A
 
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