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ID = 21937
Brand: Common type Europe tube/semicond.
Tube type:  Triode-Pentode   RF/IF-Stage   Controlling (mu) 
Identical to ECF805 = 6C18 = 6GV7
Similar Tubes
Normally replaceable-slightly different:
Heater different:

Base Noval, 9 pin miniature (USA pico-9) B9A
Filament Vf 6.3 Volts / If 0.35 Ampere / Indirect / Specified voltage AC/DC
Description Primarily intended for TV tuner application either as a VHF frequency changer or an IF amplifier following a UHF tuner.
Dimensions (WHD)
incl. pins / tip
22 x 49 x mm / 0.87 x 1.93 x inch
Information source Röhren-Taschen-Tabelle, (Franzis RTT)   
- - Manufacturers Literature   

no260_g_2.gif ECF805: RTT Schwandt
Günther Stabe † 19.8.20

Just Qvigstad
ECF805: Manufacturer's Literature
Emilio Ciardiello

More ...
Usage in Models 6= 1964 ; 14= 1965 ; 2= 1966? ; 2= 1967?? ; 2= 1968 ; 4= 1970

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):30

Collection of



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