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

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Tube-number record

MHL4

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BrandMarconi
ClassTriode
Base5-pin
Filament4 V @ 1 mA

Construction

Primary TypeTriode
EnvelopeGlass
SectionsSingle

Filament / Heater

Absolute Maximum Ratings

Plate Dissipation4 W

Audio Performance

Key Features
  • Medium impedance triode
  • Phase reversing valve
  • Oscillator

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Audio frequency amplifier200 V2500800020—

Datasheets

Datasheet: MHL4.pdf

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

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