BTW 50-3
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BrandBrown Boveri
ClassWater-Cooled Transmitting Triode
BaseK 25 water jacket
Construction
Primary TypeTriode
EnvelopeGlass-Metal
Base MaterialMetal
Sections1
Filament / Heater
MaterialThoriated tungsten
Absolute Maximum Ratings
Plate Voltage15000 V
Plate Dissipation65000 W
Grid 1 Voltage-1500 V
Cathode Current130000 mA
Audio Performance
Power Output245000 W
Key Features
- Water-cooled anode
- Directly heated
- High power transmitter
- Replacement for BTW 50-1
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class C RF, unmodulated (Grounded Cathode) | 15000V | 100000 | - | 45 | 18500mA |
| Class B AF, Push-Pull (2 tubes) | 15000V | 100000 | - | 45 | 25000mA |
Application Notes
Recommended mounting position: vertical, anode downwards. Maximum air temperature at glass header 160°C.
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