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HP4A

Information - Help 
ID = 10085
       
Country:
Denmark
Brand: M.P. Denmark
Tube type:  Vacuum Pentode   RF/IF-Stage 
Identical to HP4A
Similar Tubes
Normally replaceable-slightly different:
  AF7

Base Europe side contact P8A (Au P, 8SC) (Codex=Sf) Top contact with a cap.
Filament Vf 4 Volts / If 0.65 Ampere / Indirect / Parallel, (AC/DC)
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   
 
5base~~1.png
HP4A: own collection
Peter den Boer

 
indirect.png
HP4A: own collection
Peter den Boer


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