Tube-number record
COAXIAL TRIODE
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BrandPhilips
ClassTransmitting Tube
BaseCoaxial
Construction
Primary TypeTriode
EnvelopeGlass/Metal
Base MaterialMetal
SectionsSingle
Filament / Heater
Materialthoriated tungsten
Absolute Maximum Ratings
Plate Voltage5500 V
Plate Dissipation10000 W
Grid 1 Voltage-500 V
Cathode Current6000 mA
Audio Performance
Key Features
- Thoriated tungsten filament
- Directly heated
- Forced air cooling
- Coaxial electrode arrangement
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| H.F. class C telegraphy, grounded grid | 5000 V | 60000 | — | 60 | 4800 mA |
| H.F. class B telephony (television service, CCIR/FCC) | 5000 V | 60000 | — | — | 4800 mA |
Application Notes
Specifically designed for use in A.M., F.M. and television transmitters. Suitable for grounded-grid operation up to 220 MHz.
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