Tube-number record
8226
0 archive entries
BrandRCA
ClassBeam Power Tube
BaseCoaxial
Filament6.3 V @ 3.2 mA
Construction
Primary TypeBeam tetrode / beam power
EnvelopeCeramic-Metal (CERMOLOX)
Base MaterialMetal
Sections1
Filament / Heater
Heater NotesMatrix-Type, Oxide-Coated, Unipotential Cathode; Minimum heating time: 60 seconds
Absolute Maximum Ratings
Plate Voltage2500 V
Plate Dissipation300 W
Grid 2 Voltage400 V
Grid 1 Voltage-200 V
Cathode Current250 mA
Audio Performance
Key Features
- CERMOLOX
- Forced-air cooled
- Integral radiator
- Matrix-type cathode
- Compact aircraft and mobile application
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| RF Power Amplifier Class C (400 MHz) | 2500 V | — | — | 18 | 250 mA |
| RF Power Amplifier Class C (1215 MHz) | 1250 V | — | — | 18 | 250 mA |
Application Notes
Cooling requirements: Adequately limit radiator core temperature to 250°C using blower. Standby operation: Heater voltage can be reduced to 80% to conserve life.
0 results