radiomuseum.org
Please click your language flag. Bitte Sprachflagge klicken.

45

Information - Help 
ID = 3112
       
Country:
United States of America (USA)
Brand:
Developer: Westinghouse El. & Mfg. Co. - see also Canadian W. 
Tube type:  Triode, vacuum   Power/Output 
Identical to 45 = 145 = A245 = ER45 = EX645 = G45 = Z-45 = CL-45 = C-245 = NX-245 = 445 = SX245 = MX245 = PA245 = X245 = UX245 = PH245 = AX-245 = RayX-245 = RYB245 = NU-45 = R45_Rogers = TS-245 = 245-C = L45 = AC45 = TX-45 = VX245 = T-45 = P245 = ER245 = DX245 = 245 = CX345
Similar Tubes
Other shape (e.g. bulb type):
  M45 ; PM245
Normally replaceable-slightly different:
  38045 ; FX245 ; VT-45
Other class quality (otherwise equal):
  536A_Boonton ; CV610
First year Mar.1929 Saga of the Vacuum Tube, Tyne page 322.
First Source (s)
Jun.1929 : -- Collector info (Sammler)
Predecessor Tubes 71A  
Successor Tubes 2A3   45spec   VT-52  

Base UX-Base (4 Pins (2 thick, USA 1924, UX)
Was used by Radio/TV-reception etc.
Filament Vf 2.5 Volts / If 1.5 Ampere / Direct / Specified voltage 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, carbonized to facilitate radiation. Power output about 0.8 watt.

"Development was started by Westinghouse in June 1928."

 
Tube prices 8 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   

45.png
45: Courtesy Bureau Belper (De Muiderkring, Bussum)
Anonymous 10 Collector

171_15.png 45: Telefunken Werkstattbuch
Wolfgang Bauer

More ...

Just Qvigstad
45_techdat01.png
45: Sylvania Technical Manual
Peter Hoddow

More ...
Usage in Models 6= 1929?? ; 17= 1929? ; 163= 1929 ; 29= 1930?? ; 45= 1930? ; 284= 1930 ; 19= 1931?? ; 55= 1931? ; 217= 1931 ; 11= 1932?? ; 45= 1932? ; 72= 1932 ; 5= 1933?? ; 14= 1933? ; 52= 1933 ; 7= 1934?? ; 12= 1934? ; 44= 1934 ; 7= 1935?? ; 11= 1935? ; 73= 1935 ; 13= 1936?? ; 5= 1936? ; 25= 1936 ; 1= 1937?? ; 1= 1937? ; 22= 1937 ; 6= 1938?? ; 3= 1938? ; 2= 1938 ; 1= 1939?? ; 1= 1939? ; 3= 1939 ; 1= 1940?? ; 4= 1940 ; 2= 1941?? ; 3= 1941 ; 2= 1942?? ; 1= 1947 ; 1= 9999? ; 4= 9999

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1289

Collection of

 
45_02r.jpg

45
 

Variants

Ausführung mit blauem Glas.

Metal coated cylindrical glass version. Complete name: M45. The letter "M" appears only on the boxes and enclosed paperwork, not on the tubes. Please klick here: M45


You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]
  
rmXorg