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

Pre (2,630 tube types), Other (2,603 tube types), Power (1,292 tube types), Rectifier (816 tube types)
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HF-201 vacuum tube outline illustration

Tube-number record

HF-201

0 archive entries

HF-201 is a tube type in the TubeDatabase archive (class: Transmitting Tube). Recorded specifications: brand Amperex, construction Triode, base Metal, socket 4-pin, maximum plate voltage 2500 V, and maximum plate dissipation 150 W. The archive does not yet hold a photographed example of this type.

BrandAmperex
ClassTransmitting Tube
Base4-pin

Construction

Primary TypeTriode
EnvelopeGlass
Base MaterialMetal
SectionsSingle

Filament / Heater

MaterialThoriated Tungsten

Absolute Maximum Ratings

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
AF Power Amplifier - Class B2500 V4000450018320 mA
R.F. Power Amplifier - Class C Telegraphy2500 V4000—18200 mA
Plate Modulated R.F. Power Amplifier - Class C Telephony2000 V——18

Application Notes

Designed for R.F. Power Amplifier, Oscillator, and A.F. Power Amplifier and Modulator applications.

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    Plate Voltage2500 V
    Plate Dissipation150 W
    Grid 1 Voltage-500 V
    Cathode Current200 mA

    Audio Performance

    Power Output600 W
    Key Features
    • Radiation cooled
    • Low voltage
    • High current
    • High ratio of transconductance to interelectrode capacitance
    160 mA