Tube-number record
BEAM PENTODE
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BEAM PENTODE is a tube type in the TubeDatabase archive (class: Audio Power Tube). Recorded specifications: brand JJ Electronic, construction Beam tetrode / beam power, socket Octal, maximum plate voltage 500 V, and maximum plate dissipation 14 W. The archive does not yet hold a photographed example of this type.
BrandJJ Electronic
ClassAudio Power Tube
BaseOctal
Filament6.3 V @ 500 mA
Construction
Primary TypeBeam tetrode / beam power
EnvelopeGlass
Sections1
Filament / Heater
Absolute Maximum Ratings
Plate Voltage500 V
Plate Dissipation14 W
Grid 2 Voltage450 V
Audio Performance
Power Output4.5 W
Key Features
- Beam Power Pentode
- Octal Base
- Suitable for Audio Frequency Amplification
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A1 Single Tube | 250 V | — | — | — | 45 mA |
| Push-Pull | 250 V | — | — | — | 70 mA |
Application Notes
Typical characteristic Class A1 operation for single tube and push-pull applications.
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