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ID = 20974
Tube type:  Triode-Heptode   Frequency converter 
Identical to ECH34 = ECH4G
Similar Tubes
Other shape (e.g. bulb type):
Different connections:
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
Usage in Models 1= 1948?? ; 1= 1948 ; 3= 1949 ; 1= 1950??

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):6

Collection of



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