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MECH21

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ID = 59151
       
Country:
Great Britain (UK)
Brand: Marconi-Osram - (Valves/Tubes); GB
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Triode-Heptode   Frequency converter   Controlling (mu) 
Identical to MECH21 = ECH21

Base Loctal-8, B8G (Sylvania, 1938)
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.35 Ampere / Indirect / Parallel, (AC/DC)
Literature Taschenbuch zum Röhren-Codex 1948/49   
 
s_asea_stockholm_v166_mech21_1.jpg
MECH21: Hans Fr. Haselberger
Arpad Roth † 27.3.17

 
mech21_so.png
MECH21: rtt
Michael Schlör

 

Usage in Models 1= 1946?? ; 1= 1948??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2

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