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E422

Information - Help 
ID = 15812
       
Country:
Austria
Brand: Triotron (tubes) = Brand of Schrack, Austria
Tube type:  Triode, vacuum   Power/Output 
Identical to E422 = RE134
Similar Tubes
Normally replaceable-slightly different:
  E4_Kremenezky
First year Sep.1928 KRO gids new: E422, E435, E430 and E415 for fl. 12,50.

Base Europe 4-Pin (A, 4A, B4, since 1914) (Codex=Eo)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.15 Ampere / Direct / Battery =
Description

"Undistorted output400mW" Advertisement December 2nd 1931

 
Literature Taschenbuch zum Röhren-Codex 1948/49   
The Wireless World, London (WW, 79)   Advertisement Dec 2 1931
 
e422_1.jpg
E422: G.E.
Gerhard Eisenbarth

 
1_29.png
E422: Telefunken Werkstattbuch
Wolfgang Bauer

 
triotron_1_1.png
E422: Triotron Röhrenkatalog von 1942
Wolfgang Bauer



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