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R20_Rogers

Information - Help 
ID = 67789
       
Country:
Canada
Brand: Rogers-Majestic, Standard Radio Manufacturing, Rogers Radio Tubes; Toronto
Tube type:  Triode, vacuum   Power/Output 
Identical to R20_Rogers
Similar Tubes
Other characteristic (electr. data):
  402_McCullough

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
Description

Filament connected to two top caps. This tube equivalent to type 402 but with suitable adjustment to the grid voltage 

Information source - - Manufacturers Literature   

rogers_r20_pin_ass.png R20_Rogers: Fin Stewart
Fin Stewart


Just Qvigstad
rogersdata2~~4.png
R20_Rogers: own collection
Peter den Boer

 

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