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ID = 19340
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Tube type:  Triode-Heptode   Frequency converter 
  Late but very rare. ***
Identical to ECH4K
Similar Tubes
Different connections:

Filament Vf 6.3 Volts / If 0.35 Ampere / Indirect / Specified voltage AC/DC
Description Base diagram same as UCH4 
Text in other languages (may differ)

78.png ECH4K: Telefunken Werkstattbuch
Wolfgang Bauer

Usage in Models 2= 1940? ; 1= 1942

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):3

Collection of



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