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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

RS 303

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BrandSiemens
ClassPower Triode

Construction

Primary TypeTriode
EnvelopeGlass

Filament / Heater

Absolute Maximum Ratings

Plate Dissipation1000 W

Audio Performance

Key Features
  • Radiation-cooled
  • Low frequency amplifier
  • Modulation stages

Filters

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Manufacturers

Brands

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