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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

3CX3000F1

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BrandEimac
ClassTriode
BaseFlexible / flying leads

Construction

Primary TypeTriode
EnvelopeMetal/Ceramic
SectionsSingle

Filament / Heater

MaterialThoriated Tungsten

Absolute Maximum Ratings

Plate Voltage6000 V
Plate Dissipation3000 W
Cathode Current2500 mA

Audio Performance

Power Output10000 W
Key Features
  • Low-mu forced-air cooled power triode
  • Audio amplifier or modulator
  • Flying leads for filament and grid
  • Thoriated tungsten filament

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Class AB1 (Two Tubes)4000 V11000—4.952750 mA
Class AB1 (Two Tubes)5500 V11000—4.952200 mA

Application Notes

Intended for use as an audio amplifier or modulator. Cooling must be provided to maintain seal temperature at 250°C or below. Filament voltage should not exceed 7.5V by more than 5%. Reduction to 7.2V enhances life.

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