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CX300A

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ID = 22239
       
Country:
United States of America (USA)
Brand:
Developer: General Electric Co. (GE); Bridgeport CT, Syracuse NY 
Tube type:  Gas Triode   Detector 
  Ca. 1925 up to 1945 rare.
Identical to CX300A = ER200A = H_CeCo = DX200A = 4602_WLS = Detector_Knight = X200A = SX100A = PD200A = GSX-200A = 57T200A = PA200A = BD200A = Z200A = RYB200A = AX200A = 00AX = MX200A = R200A = 0200A = SLX200A = CTX200A = DC200A = CF500 = UX200A
Similar Tubes
Normally replaceable-slightly different:
  200X00-A ; GX200A ; JX200A ; PR-1-A ; TS200-A ; UX200AA
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

For use as supersensiitive detector in amateur receiving sets.

 
Dimensions (WHD)
incl. pins / tip		 45 x 108 x 35 mm / 1.77 x 4.25 x 1.38 inch
Weight 47 g / 1.66 oz
Tube prices 1 Tube prices (visible for members only)
4a_ux4~~13.png CX300A: own collection
Peter den Boer

Just Qvigstad 		cx300adata1.png
CX300A: own collection
Peter den Boer
More ...
Usage in Models 1= 1925 ; 8= 1926 ; 4= 1927? ; 23= 1927 ; 6= 1928 ; 3= 1929?? ; 1= 1929?
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):46

Collection of

Geri Meier (CH)
Hartmut Völler (D)
Otto Frosinn (D)
John Koster (NL)
Robert Gillespie (USA)
Marc Couque (F)
Peter den Boer (NL)
 
cx300a_klein.jpg

CX300A
 
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