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P420_5pin

Information - Help 
ID = 20947
       
Country:
Austria
Brand: Triotron (tubes) = Brand of Schrack, Austria
Developer: Triotron (tubes) = Brand of Schrack, Austria 
Tube type:  Vacuum Pentode   Power/Output 
  Ca. 1925 up to 1945 rare.
Identical to P420_5pin
Similar Tubes
Normally replaceable-slightly different:
  B443
Other base:
  L43 ; P420

Base Europe 5-Pin (O5A, B5)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.15 Ampere / Direct / Battery = /
Literature - - Manufacturers Literature   1935
- - Manufacturers Literature   1935
 
p420.jpg
P420_5pin: RW
Roland Weilguny

 
p4205pin_so.png
P420_5pin: rtt
Michael Schlör

 
p420data.png
P420_5pin: own collection
Peter den Boer



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