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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

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Characteristics at Va=2kV, Ia=13A2000V30000--13000mA
Characteristics at Va=12kV, Ia=2A12000V20000--2000mA
Characteristics at Ia=4A---344000mA

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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