P 300-1
0 Tubes in archive
BrandBrown Boveri
ClassTransmitting Pentode
Base85/5
Construction
Primary TypePentode
EnvelopeGlass
SectionsSingle
Filament / Heater
MaterialThoriated tungsten
Absolute Maximum Ratings
Plate Voltage3000 V
Plate Dissipation400 W
Grid 2 Voltage600 V
Grid 1 Voltage-600 V
Cathode Current600 mA
Audio Performance
Power Output1980 W
Key Features
- Thoriated tungsten filament
- Direct heating
- Forced air cooling required
- Suppressor grid (G3) connection at top cap and base
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Classe C sans modulation (12 Mc/s) | 3000V | 8000 | - | 4 | 530mA |
| Classe B modulation AF (3000V) | 3000V | - | - | - | 450mA |
Application Notes
The tube must be mounted vertically. Glass temperature must not exceed 200°C. Thoriated tungsten filaments are fragile; avoid shocks and vibrations.
Datasheet Viewer
Loading datasheet...
Sort by
Showing 1 to 0 of 0 results