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

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Tube-number record

4C34

0 archive entries

BrandLewis Electronics
ClassTriode
BaseJumbo

Construction

Primary TypeTriode
EnvelopeGlass
Sectionssingle

Filament / Heater

Materialthoriated tungsten

Absolute Maximum Ratings

Plate Voltage2500 V
Plate Dissipation250 W
Grid 1 Voltage-500 V
Cathode Current275 mA

Audio Performance

Power Output650 W
Key Features
  • Thoriated tungsten filament
  • High frequency operation up to 60 mc at full ratings
  • Convection cooling
  • Jumbo 4-pin ceramic base

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Average Characteristics2000 V5600—23150 mA
Class B Audio Frequency Power Amplifier (2 tubes)2000 V———430 mA
Class B Radio-Frequency Power Amplifier2000 V———

Datasheets

Datasheet: 4C34.pdf

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Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.

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    150 mA
    Class C Radio-Frequency Power Amplifier - Plate Modulated2000 V———250 mA
    Class C Radio-Frequency Power Amplifier & Oscillator - CW2000 V———250 mA