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Tube Database (7,341 tube types · 1,270 archive entries)

Other (3,257 tube types), Pre (2,314 tube types), Power (1,030 tube types), Rectifier (740 tube types)
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Tube-number record

TA 12/20

0 archive entries

BrandPhilips
ClassTriode

Construction

Primary TypeTriode
EnvelopeWater-cooled
SectionsSingle

Filament / Heater

MaterialTungsten

Absolute Maximum Ratings

Plate Voltage12000 V
Plate Dissipation10400 W

Audio Performance

Key Features
  • Water-cooled
  • Tungsten cathode
  • HF Power Triode

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
HF class C telegraphy12000 V———2700 mA
HF class B telephony12000 V———1540 mA
HF class C anode modulation10000 V———

Application Notes

Used as Modulator or HF amplifier.

Filters

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Manufacturers

Brands

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    1400 mA