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ACH1n Info
Country:  Czechoslovakia      Brand:  Tesla, narodni podnik 
  Developer:  Telefunken Deutschland (TFK) 
  Tube type:  Triode-Heptode   Frequency converter   Controlling (mu) 
Tube ID = 27404
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Identical to ACH1n
Similar Tubes ECH4 (Heater different)  

Base Europe side contact base P (P8A) Top contact with a cap
Was used by Radio/TV-reception etc.
Filament -: Indirect / -: Parallel, (AC/DC) / If: 0.6 Ampere / Vf 4 Volts /
Description This is an ECH4, fitted with a 4 volt- heater as a rather makeshift replacement for the ACH1. It requires alterations of wiring and anode and screen resistors. 
Text in other languages (may differ)
Literature Taschenbuch zum Röhren-Codex 1948/49   

ach1n_0.jpg
Sammlung Bayer
Klaus Bayer

 
au46.png
RTT 1974 (Franzis) 13. Auflage
Martin Renz

 
ach1n.gif
Tesla catalogue
Gabriel Toth

No further Information for

ACH1n    

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