Tube-number record
B-6
0 archive entries
B-6 is a tube type in the TubeDatabase archive (class: Ballast Tube). Recorded specifications: brand General Electric, construction Other / special, socket Special / none, and maximum plate voltage 21 V. The archive does not yet hold a photographed example of this type.
BrandGeneral Electric
ClassBallast Tube
BaseSpecial / none
Filament15 V @ 950 mA
Construction
Primary TypeOther / special
EnvelopeGlass
Sections1
Filament / Heater
Heater NotesCurrent variation within operating voltage range
Absolute Maximum Ratings
Plate Voltage21 V
Audio Performance
Key Features
- Constant-current device
- Hydrogen-filled envelope
- Temperature-dependent resistor
Application Notes
The ballast tube should be mounted, with the base down. Envelope becomes quite hot during operation; free circulation of air must be allowed to keep temperature below 150 F.
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