TBW 12/100
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BrandPhilips
ClassPower Triode
BaseSpecial / none
Construction
Primary TypeTriode
EnvelopeMetal-Glass
Base MaterialMetal
SectionsSingle
Filament / Heater
MaterialThoriated tungsten
Absolute Maximum Ratings
Plate Voltage15000 V
Plate Dissipation100000 W
Grid 1 Voltage-1200 V
Cathode Current12500 mA
Audio Performance
Power Output202000 W
Key Features
- Thoriated tungsten filament
- Water cooled anode
- Air flow to seals required
- Vertical mounting
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| H.F. class C telegraphy | 12000V | 50000 | 540 | 27 | 12000mA |
| H.F. class B telephony | 12000V | - | - | 27 | 12200mA |
| L.F. class B amplifier (two tubes) | 12000V | - | - | 27 | 10800mA |
Application Notes
To keep seal temperatures below 180 °C, air flow must be started upon or before application of filament voltage. Above 6 MHz, additional air cooling is mandatory for anode and grid seals.
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