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

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3C34 vacuum tube outline illustration

Tube-number record

3C34

0 archive entries

3C34 is a tube type in the TubeDatabase archive (class: Triode). Recorded specifications: brand Heintz & Kaufman, Ltd., construction Triode, base Ceramic, socket 4-pin, maximum plate voltage 2000 V, and maximum plate dissipation 28 W. The archive does not yet hold a photographed example of this type.

BrandHeintz & Kaufman, Ltd.
ClassTriode
Base4-pin

Construction

Primary TypeTriode
EnvelopeGlass
Base MaterialCeramic

Filament / Heater

MaterialThoriated Tungsten

Absolute Maximum Ratings

Plate Voltage2000 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Average Characteristics1000 V2600—2535 mA
Class B Audio-Frequency (Two Tubes)1500 V—21200—136 mA
Class C Radio-Frequency (Plate Modulated)1500 V———

Datasheets

Datasheet: 3C34.pdf

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

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    Plate Dissipation28 W
    Grid 1 Voltage-250 V
    Cathode Current75 mA

    Audio Performance

    Power Output120 W
    Key Features
    • Triode Amplifier-Oscillator
    • Thoriated Tungsten Filament
    • Convection Cooling
    • Ceramic Base
    50 mA
    Class C Radio-Frequency (Unmodulated)2000 V———56 mA