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

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Tube-number record

P.220

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BrandMazda
ClassBattery Output Triode
Base4-pin

Construction

Primary TypeTriode
EnvelopeGlass
SectionsSingle

Filament / Heater

Absolute Maximum Ratings

Plate Voltage150 V
Cathode Current10 mA

Audio Performance

Key Features
  • Battery operated
  • Standard 4-pin base
  • High sensitivity

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Class A100 V3400370012.5—

Application Notes

Recommended for sets where the consumption is limited to 5-7 milliamps. The grid circuit resistance should not exceed 2 megohms. May be used as a driver valve for PD.220.

Datasheets

Datasheet: P220.pdf

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

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