Tube-number record
BTW 150-2
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BTW 150-2 is a tube type in the TubeDatabase archive (class: High Power Transmitting Triode). Recorded specifications: brand Brown Boveri, construction Triode, base Metal/Ceramic, maximum plate voltage 18000 V, and maximum plate dissipation 220000 W. The archive does not yet hold a photographed example of this type.
BrandBrown Boveri
ClassHigh Power Transmitting Triode
Construction
Primary TypeTriode
EnvelopeMetal-Glass-Water-Cooled
Base MaterialMetal/Ceramic
Sections1
Filament / Heater
MaterialThoriated tungsten, directly heated
Absolute Maximum Ratings
Plate Voltage18000 V
Plate Dissipation220000 W
Grid 1 Voltage-1500 V
Cathode Current300000 mA
Audio Performance
Power Output880000 W
Key Features
- Water-cooled anode
- Directly heated cathode
- Industrial and broadcast applications
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class C RF Amplifier Unmodulated (Grounded Cathode) | 18000 V | 175000 | — | 44 | 44500 mA |
| Class B AF Amplifier (2 tubes in push-pull) | 15000 V | — | — | — | 83000 mA |
Application Notes
Designed for 500 and 1000 kW transmitters. Mounting position: vertical, anode downwards.
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