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15D12

Information - Help 
ID = 31221
       
Country:
Great Britain (UK)
Brand: Ediswan, Siemens Edison Swan Electric Co.; London
Tube type:  Transmitting Triode, air cooled   Power/Output 
Identical to 15D12

Base TRANSMITTING & Power-TUBES/VALVES in gen Top contact with a cap.
Filament Vf 6.3 Volts / If 31 Ampere / Direct / Specified voltage AC/DC
Description Pa <800W. Va < 6000.
Graphite Anode, radiation/air cooled. 
Dimensions (WHD)
incl. pins / tip
152 x 254 x mm / 5.98 x 10.00 x inch
Information source - - Manufacturers Literature   
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15d12_ediswan_data_01.png
15D12: original data sheet
Bernd Staginnus

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