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Tube-number record

33HE7

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BrandHitachi
ClassDiode-Pentode
BaseCompactron
Filament33.6 V @ 450 mA

Construction

Primary TypeBeam tetrode / beam power
Sections2

Filament / Heater

Warm-up Time11s
Heater NotesHeater voltage for a bogey tube at If=0.45 amperes.

Absolute Maximum Ratings

Audio Performance

Key Features
  • High-perveance diode
  • Beam-power pentode
  • Duodecar type
  • Coated Unipotential cathode

Application Notes

The diode is intended for service as the damping diode and the pentode as the horizontal-deflection amplifier in television receivers.

Datasheets

Datasheet: 33HE7.pdf

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

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