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ECH34

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ID = 20974
       
 
   
Tube type:  Triode-Heptode   Frequency converter 
Identical to ECH34 = ECH4G
Similar Tubes
Other shape (e.g. bulb type):
  ECH4A
Different connections:
  ECH4K
Other base:
  ECH21 ; ECH4
Base Octal (Int.Octal, IO) K8A, USA 1935 Top contact with a cap.
Filament Vf 6.3 Volts / If 0.35 Ampere / Indirect / Specified voltage AC/DC
6j9sgmbasdiag2~~2.png ECH34: schematic diagram
Jacob Roschy

Just Qvigstad 		ech4a_characteristics.png
ECH34: My book
Pier Antonio Aluffi
Usage in Models 1= 1948?? ; 1= 1948 ; 3= 1949 ; 1= 1950??
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):6

Collection of

Maurizio Nicolussi (I)
 
ech34_philips_it.jpg

 
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