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UX120

Information - Help 
ID = 16540
       
Country:
United States of America (USA)
Brand:
Developer: General Electric for Brand RCA-Radiotron; Bridgeport CT, Syracuse NY 
Tube type:  Triode, vacuum   Power/Output 
Identical to UX120 = CX220 = VX120 = 420_deForest = GSX-120 = 420 = 220_USA = CT120 = UX220 = MX120 = X120 = RYB120 = NX-120 = DC120 = NU-20 = PA120 = SX20 = SLX120 = RayX-120
Similar Tubes
Normally replaceable-slightly different:
  100X20-A ; 303x ; ER120 ; E_CeCo ; SX1200
Other base:
  120_Thermotron
First Source (s)
1925 : Saga of the Vacuum Tube, Tyne p.315

Base UX-Base (4 Pins (2 thick, USA 1924, UX) (Codex=Bo)
Was used by Radio/TV-reception etc.
Filament Vf 3 Volts / If 0.13 Ampere / Direct / Battery =
Description

Work on development of this tube began in the GE laboratories in the Fall of 1924. Manufacture started on a small scale in June 1925 and it was available to the public around three months later. 

Plate dissipation 0,11W at plate voltage 135V, for sets with UV199 tubes.

 
Dimensions (WHD)
incl. pins / tip
x 95 x 25 mm / x 3.74 x 0.98 inch
Weight 29 g / 1.02 oz
Tube prices 3 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   
  usa_rca_ux_120_ckt.png
  UX120: Mfg. data sheet
Jay Kinnard
 
ux120_rca_rmf.jpg
UX120: My Collection
Bruce Morgenstern

 
uxsockel_5.png
UX120: KoBi
Konrad Birkner † 12.08.2014

 
rca_ux120_data.png
UX120: RCA Tube Manual RC-10
Heinz Höger


from Just Qvigstad

Usage in Models 1= 1924 ; 1= 1925? ; 10= 1925 ; 1= 1926? ; 3= 1926 ; 2= 1927 ; 1= 1929

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):19


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