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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

R.F. POWER AMPLIFIER, OSCILLATOR, CLASS B MODULATOR

0 archive entries

BrandAmperex
ClassTriode

Construction

Primary TypeTriode
EnvelopeGlass
Sections1

Filament / Heater

MaterialThoriated Tungsten

Absolute Maximum Ratings

Plate Voltage3000 V
Plate Dissipation250 W
Grid 1 Voltage-500 V
Cathode Current275 mA

Audio Performance

Power Output750 W
Key Features
  • R.F. Power Amplifier
  • Oscillator
  • Class B Modulator

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
A.F. Power Amplifier and Modulator—Class B (Two Tubes)3000 V4000500023370 mA
R.F. Power Amplifier—Class B—Telephony2500 V——23150 mA
Plate Modulated R.F. Power Amplifier—Class C—Telephony2000 V——23

Application Notes

Carrier conditions for use with a maximum modulation factor of 1.0

Filters

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Manufacturers

Brands

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    250 mA
    R.F. Power Amplifier and Oscillator—Class C—Telegraphy2500 V——23275 mA