DET 27
0 Tubes in archive
BrandMarconi
ClassTriode
Construction
Primary TypeTriode
EnvelopeGlass
SectionsSingle
Filament / Heater
MaterialThoriated tungsten
Absolute Maximum Ratings
Plate Voltage2700 V
Plate Dissipation250 W
Grid 1 Voltage-300 V
Cathode Current500 mA
Audio Performance
Typical THD5%
Power Output900 W
Key Features
- Thoriated tungsten filament
- Suitable for RF power amplifier or oscillator up to 3 MHz
- Audio power amplifier
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| RF Power Amplifier Class C Telegraphy | 2000V | 9000 | 2450 | 22 | 450mA |
| RF Power Amplifier Class C Anode Modulated | 1600V | 9000 | 2450 | 22 | 325mA |
| AF Amplifier Class AB1 (Per Valve) | 2500V | 9000 | 2450 | 22 | 180mA |
| AF Amplifier Class AB2 (Per Valve) | 2500V | 9000 | 2450 | 22 | 265mA |
Application Notes
The valve must be mounted vertically with the anode uppermost. Adequate ventilation must be provided to ensure the bulb temperature does not exceed 250°C.
Datasheet Viewer
Loading datasheet...
Sort by
Showing 1 to 0 of 0 results