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ID = 67789
Brand: Rogers-Majestic, Standard Radio Manufacturing, Rogers Radio Tubes; Toronto
Tube type:  Triode, vacuum   Power/Output 
Identical to R20_Rogers = 20_Rogers
Similar Tubes
Other characteristic (electr. data):

Base UX-Base (4 Pins (2 thick, USA 1924, UX) 2 Top contacts.
Was used by Radio/TV-reception etc.
Filament Vf 2.8 Volts / If 1.6 Ampere / Indirect

Filament connected to two top caps. This tube equivalent to type 402 but with suitable adjustment to the grid voltage. Also known as 20 or AC29.

Information source - - Manufacturers Literature   
70 Years of Radiotubes and V.   p. 185
Tube Lore (II)

rogers_r20_pin_ass.png R20_Rogers: Fin Stewart
Fin Stewart

Just Qvigstad
R20_Rogers: own collection
Peter den Boer


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