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U291

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ID = 32171
       
Country:
Great Britain (UK)
Brand: Ediswan, Siemens Edison Swan Electric Co.; London
Tube type:  Half-Wave Vacuum Rectifier   Power-supply 
Identical to U291 = PY32

Base Octal (Int.Octal, IO) K8A, USA 1935
Filament Vf 29 Volts / If 0.3 Ampere / Indirect / Specified current AC/DC ~ = (Series working)
Description Va <700 V piv, 250 rms; Ia < 325ma. 
Dimensions (WHD)
incl. pins / tip
37 x 112 x mm / 1.46 x 4.41 x inch
Information source - - Manufacturers Literature   
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u291_so.png U291: rtt
Anonymous 10 Collector


Just Qvigstad

Collection of

 
u291.jpg

 

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