Tube-number record
TAW12/356
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BrandPhilips
ClassTriode
BaseSpecial / none
Construction
Primary TypeTriode
EnvelopeGlass-Metal
Base MaterialMetal flange
SectionsSingle
Filament / Heater
MaterialTungsten
Absolute Maximum Ratings
Plate Voltage15000 V
Plate Dissipation30000 W
Grid 1 Voltage-1000 V
Cathode Current5000 mA
Audio Performance
Typical THD4%
Power Output107000 W
Key Features
- Water-cooled
- Three-phase tungsten filament
- External anode
- For H.F. or L.F. amplifier or oscillator
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| H.F. class C telegraphy | 15000 V | 10500 | — | 21 | 4200 mA |
| H.F. class B telephony | 15000 V | — | — | — | 1800 mA |
| L.F. class B modulator (two tubes) | 12000 V | — | — | — |
Application Notes
Vertical mounting with anode down. Air cooling required for seals above 10 Mc/s. Filament peak inrush current must not exceed 100A.
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