Tube-number record
TA 12/10000
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BrandPHILIPS
ClassTransmitting Tube
Construction
Primary TypeTriode
EnvelopeGlass/Metal
Base MaterialMetal
SectionsSingle
Filament / Heater
MaterialTungsten
Absolute Maximum Ratings
Plate Voltage12000 V
Plate Dissipation12000 W
Audio Performance
Key Features
- Water cooled
- Ferro-chrome external anode
- High power output
- Suitable for wavelengths > 300m
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| General Operation | 9000 V | 10000 | 4000 | 40 | — |
Application Notes
In telegraphy the power supply can be 15 kW; in telephony, depending on the desired modulation quality, from 15 to 6 kW.
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