Tube-number record
TA 12/20000
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BrandPhilips
ClassTransmitting Tube
Construction
Primary TypeTriode
EnvelopeGlass and Metal
Base MaterialFerro-chrome alloy
Sections1
Filament / Heater
MaterialTungsten
Absolute Maximum Ratings
Plate Voltage12000 V
Plate Dissipation12000 W
Audio Performance
Key Features
- Water cooled
- External anode
- Ferro-chrome to glass seal
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| RF Amplifier | 12000 V | 12000 | 3300 | 40 | — |
Application Notes
Suitable for wavelengths greater than 300 meters. Telegraphy power consumption can be 30 kW; Telephony varies from 12 to 30 kW depending on modulation quality.
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