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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

BTW 25-3

0 archive entries

BrandBrown Boveri
ClassTransmitting Triode

Construction

Primary TypeTriode
EnvelopeGlass-Metal
Sections1

Filament / Heater

MaterialThoriated tungsten

Absolute Maximum Ratings

Plate Voltage15000 V
Plate Dissipation30000 W
Grid 1 Voltage-1500 V
Cathode Current11000 mA

Audio Performance

Key Features
  • Water-cooled anode
  • Thoriated tungsten cathode
  • Industrial and broadcast applications

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Class C RF Unmodulated, Grounded Cathode15000 V———10000 mA
Class C RF Unmodulated, Grounded Cathode12500 V———10000 mA
Class C RF Unmodulated, Grounded Cathode10000 V———

Filters

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Manufacturers

Brands

    0 results
    10000 mA
    Class B AF Amplifier (2 tubes in push-pull)12500 V———13600 mA