TA 12/15
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BrandPhilips
ClassTransmitting Triode
Construction
Primary TypeTriode
EnvelopeWatercooled
Sections1
Filament / Heater
MaterialTungsten
Absolute Maximum Ratings
Plate Voltage12000 V
Plate Dissipation7500 W
Cathode Current1250 mA
Audio Performance
Key Features
- Watercooled anode
- Tungsten filament
- H.F. amplification
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| H.F. class B amplifier | 12000V | 5500 | 7300 | 40 | 800mA |
Application Notes
Specifically designed for H.F. amplification in powerful transmitters for wavelengths down to 150 metres. For H.F. class C anode modulation (Heising system) the anode voltage should not exceed 10,000 volts.
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