Tube-number record
BATTERY-OPERATED FILAMENT TYPE
0 archive entries
BATTERY-OPERATED FILAMENT TYPE is a tube type in the TubeDatabase archive (class: Receiving Tube). Recorded specifications: brand RCA and construction Directly heated. The archive does not yet hold a photographed example of this type.
BrandRCA
ClassReceiving Tube
Construction
Primary TypeDirectly heated
SectionsSingle
Filament / Heater
MaterialCoated
Absolute Maximum Ratings
Audio Performance
0 results