Tube-number record
PT-841
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BrandGeneral Electric
ClassTriode
Base4-pin
Construction
Primary TypeTriode
EnvelopeGlass
Base MaterialBakelite
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage450 V
Plate Dissipation15 W
Grid 1 Voltage-200 V
Cathode Current60 mA
Audio Performance
Typical THD5%
Power Output23 W
Key Features
- High-vacuum triode
- Pliotron
- Medium 4-pin Bayonet base
- U.S. Army Signal Corps Type VT-51
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A A-F Amplifier | 425 V | 750 | 40000 | 30 | 2.2 mA |
| Class B A-F Power Amplifier | 425 V | — | — | — | 120 mA |
| Class C R-F Power Amplifier | 450 V | — | — | — | 50 mA |
Application Notes
The tube should be mounted so as to operate in an upright position with the filament end down. Maximum ratings apply only at frequencies below 6 megacycles.
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