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ID = 68496
United States of America (USA)
Brand: United Electronics Co.; Newark, NJ
Tube type:  Triode, vacuum   Power/Output 
Identical to 311CT

Base Jumbo 4-pin bayonet (1918)
Was used by Transmittertube (Radio)
Filament Vf 10 Volts / If 3.25 Ampere / Direct / Specified voltage AC/DC

This tube used in Daithermy

Dimensions (WHD)
incl. pins / tip
x 210 x 64 mm / x 8.27 x 2.52 inch
Information source Tube Lore (II)   p. 161
- - Manufacturers Literature   Catalog dated March 1959
Taschenbuch zum Röhren-Codex 1948/49

jumbo_4_pin~~31.png 311CT: Fin Stewart
Fin Stewart

Just Qvigstad
Usage in Models 1= 1930??

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):1

Collection of



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