Tube-number record
4220-C
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BrandStandard Valves
ClassWater Cooled Triode
Construction
Primary TypeTriode
Envelopeglass/metal
Sectionssingle
Filament / Heater
MaterialPure Tungsten
Absolute Maximum Ratings
Plate Voltage13000 V
Plate Dissipation10000 W
Cathode Current1500 mA
Audio Performance
Power Output545 W
Key Features
- Pure Tungsten filament
- Constant voltage type
- Single ended
- Water cooled
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical (Constants) | 10000 V | 5300 | 7500 | 40 | 800 mA |
| Class A AF Amp and Mod | 10000 V | — | — | — | 300 mA |
| Class A AF Amp and Mod | 12000 V | — | — | — | 380 mA |
Application Notes
Specifically designed for use as an RF or AF amplifier or modulator. Cooling required via MS.1362 or 223 LU IA water jackets.
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