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UU4

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ID = 8297
       
Country:
Great Britain (UK)
Brand: Mazda = Valve (Tube) brand GB (see also France)
Tube type:  Full-Wave Vacuum Rectifier   Power-supply 
Identical to UU4
Similar Tubes
Normally replaceable-slightly different:
  1867 ; 1A7_Rectifier(GB) ; RGN2304
Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Em)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 2.2 Ampere / Half indirect
Information source History of the British Radio Valve to 1940   p. 149 &176
- - Manufacturers Literature   1937
Babani, International Radio Tube Encyclopaedia
Taschenbuch zum Röhren-Codex 1948/49
uu4.png
UU4: Propia
Santiago Lopez Perez
150_10.png UU4: Telefunken Werkstattbuch
Wolfgang Bauer

Just Qvigstad 		uu4_uu5.png
UU4: own collection
Peter den Boer
Usage in Models 1= 1934? ; 1= 1935?? ; 1= 1936? ; 2= 1936 ; 4= 1937? ; 23= 1937 ; 2= 1938? ; 30= 1938 ; 1= 1939? ; 5= 1939
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):70
Museum "Wireless In Wales Museum"
 
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