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UX245

Information - Help 
ID = 3068
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Developer: Westinghouse El. & Mfg. Co. - see also Canadian W. 
Tube type:  Triode, vacuum   Power/Output 
Identical to UX245 = 245 = 45 = P245 = X-245 = PH245 = F203 = 445 = SX245 = MX245 = 245-C
First year Mar.1929 Saga of the Vacuumtube, Tyne p. 322
First Source (s)
1929 : Saga of the Vacuumtube, Tyne p. 320
Successor Tubes 2A3  

Base UX-Base (4 Pins (2 thick, USA 1924, UX) (Codex=Bo)
Filament Vf 2.5 Volts / If 1.5 Ampere / Direct / Parallel, (AC/DC) /
Description According to Tyne, page 322, this audio-power output tube was introduced in March 1929. It is intermediate between UX171A and UX210 and was first named UX245, later in short 245 and 45. See other identical denominations too. The oxide-coated filament operates at 2.5 volts AC or DC, taking 1.4 amperes. The anode is of sheet nickel, carbonzed fo facilitate radiation. Power output about 0.8 watt. The tube was not yet listed in March 1929 GE tube history, which gives introductory dates for all their tubes up to that time. 
Text in other languages (may differ)
Literature Taschenbuch zum Röhren-Codex 1948/49   

 
ux245_1.jpg
UX245: K.H.Fischer
Karlheinz Fischer

 
uxsockel_14.png
UX245: KoBi
Konrad Birkner † 12.08.2014

 
ux245_data.png
UX245: RCA Receiving Tube Manual RC-10
Heinz Höger


Usage in Models 11= 1929? ; 79= 1929 ; 1= 1930?? ; 5= 1930? ; 27= 1930 ; 1= 1931?? ; 3= 1931? ; 32= 1931 ; 1= 1932? ; 1= 1932 ; 1= 9999

Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):162


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