TBW7/9000
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BrandPhilips
ClassTriode
Construction
Primary TypeTriode
EnvelopeWater-cooled anode
Base MaterialMetal/Glass
Sections1
Filament / Heater
MaterialThoriated tungsten
Absolute Maximum Ratings
Plate Voltage8000 V
Plate Dissipation6000 W
Grid 1 Voltage-1250 V
Cathode Current1800 mA
Audio Performance
Key Features
- Industrial R.F. generator use
- Directly heated thoriated tungsten filament
- Water cooled anode
- Class C oscillator
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| H.F. class C oscillator (Continuous service) | 7200V | 12000 | - | 24 | 1500mA |
| H.F. class C oscillator (Continuous service) - Alt | 6200V | 12000 | - | 24 | 1400mA |
Application Notes
At frequencies above 4 Mc/s, both grid terminals should be connected in parallel. Cooling requires low velocity air flow on terminals above 4 Mc/s. Water jacket K721 is used for cooling.
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