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QA2406

Information - Help 
ID = 72081
       
Country:
Great Britain (UK)
Brand: Marconi-Osram - (Valves/Tubes); GB
Tube type:  Double Triode   Universal 
Identical to QA2406
Similar Tubes
Other class quality (otherwise equal):
  12AT7 ; B309

Base Noval, B9A
Filament Vf 12.6 Volts / If 0.15 Ampere / Indirect / Parallel / series AC/DC
Description

Using the centre-tapped heater, can also be operated at 6.3V 0.3A.

Special Quality version of the B309

 
Text in other languages (may differ)
Literature Röhren-Taschen-Tabelle, (Franzis RTT)   
The Wireless World, London (WW, 79)   
 

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