TY 12-25W
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BrandMullard
ClassIndustrial Triode
Construction
Primary TypeTriode
EnvelopeExternal anode, water-cooled
SectionsSingle
Filament / Heater
MaterialThoriated tungsten
Absolute Maximum Ratings
Plate Dissipation20000 W
Audio Performance
Power Output37500 W
Key Features
- Thoriated tungsten filament
- Water-cooled anode
- External anode
- Class C RF Oscillator operation
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Characteristics at Va=2kV, Ia=13A | 2000V | 30000 | - | - | 13000mA |
| Characteristics at Va=12kV, Ia=2A | 12000V | 20000 | - | - | 2000mA |
| Characteristics at Ia=4A | - | - | - | 34 | 4000mA |
Application Notes
The filament current must never exceed a surge value of 210A. To ensure uniform RF current distribution, the grid lead should be connected to the middle wing nut of the grid bracket.
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