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ID = 14955
United States of America (USA)
Developer: Raytheon Mfg. Co.; Cambridge, MA 
Tube type:  Triode, vacuum   Universal 
Identical to UX230 = PH230 = 430 = T-31_triad = T-30 = NX-230 = X230 = CX30 = C-230 = ER30 = 130_Arcturus = ER230 = FP-59 = RYB230 = NU-30 = 30 = 230 = 430
Similar Tubes
Different connections:

Base UX-Base (4 Pins (2 thick, USA 1924, UX) (Codex=Bo)
Was used by Radio/TV-reception etc.
Filament Vf 2 Volts / If 0.06 Ampere / Direct / Battery =

Originally made with the T9 (30 mm diameter glass bulb), this tube was made from early in 1931 with the "S12" bulb (38 mm diameter) and generally branded type 30 only. A year later, the bulb size was changed to "ST12". The weight increased by 2 grams. Most US manufacturers still making the tube adopted the changes as a natural progression.

Dimensions (WHD)
incl. pins / tip
x 93 x 30 mm / x 3.66 x 1.18 inch
Weight 32 g / 1.13 oz
Information source Taschenbuch zum Röhren-Codex 1948/49   Page 330
Saga of the Vacuum Tube, Tyne   
-- Collector info (Sammler)

uxsockel_11~~59.png UX230: Fin Stewart
Fin Stewart

Just Qvigstad
Usage in Models 4= 1930 ; 5= 1931 ; 1= 1932

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):10

Collection of



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