5770
0 Tubes in archive
BrandRCA
ClassPower Triode
BaseFilament Posts
Construction
Primary TypeTriode
EnvelopeGlass-Metal
Base MaterialMetal
SectionsSingle
Filament / Heater
MaterialThoriated Tungsten
Warm-up Time15s
Absolute Maximum Ratings
Plate Voltage17000 V
Plate Dissipation50000 W
Grid 1 Voltage-2000 V
Cathode Current50000 mA
Audio Performance
Key Features
- Water cooled plate
- Forced-air cooled seals
- Grounded-grid type
- Multistrand thoriated tungsten filament
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| RF Power Amplifier - Class C Telegraphy | 17000V | - | - | 40 | 8500mA |
| AF Power Amplifier - Class B (Typical Push-Pull) | 15000V | - | - | 40 | 12000mA |
Application Notes
Full rated filament voltage can be applied safely to the cold filament. Water flow must start before any voltages are applied.
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