Tube-number record
B1-0,1/40
0 archive entries
B1-0,1/40 is a tube type in the TubeDatabase archive (class: High-voltage Rectifier). Recorded specifications: construction Diode, socket Octal, maximum plate voltage 40000 V, and maximum plate dissipation 75 W. The archive does not yet hold a photographed example of this type.
ClassHigh-voltage Rectifier
BaseOctal
Construction
Primary TypeDiode
Rectifier TypeHalf-wave
EnvelopeGlass
SectionsSingle
Filament / Heater
Materialcarbonized thoriated tungsten
Warm-up Time5s
Absolute Maximum Ratings
Plate Voltage40000 V
Plate Dissipation75 W
Cathode Current100 mA
Audio Performance
Key Features
- Directly heated
- Carbonized thoriated tungsten cathode
- High voltage capability
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Rectifier | 200 V | — | — | — | 75 mA |
Application Notes
The B1-0,1/40 rectifier tube is used in rectifier circuits of RF equipment for converting AC to DC.
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