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

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Tube-number record

220 H.P.T.

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BrandCOSSOR
ClassPentode

Construction

Primary TypePentode
EnvelopeGlass
SectionsSingle

Filament / Heater

Absolute Maximum Ratings

Plate Voltage150 V
Grid 2 Voltage150 V

Audio Performance

Key Features
  • 2-Volt Economy Pentode
  • High sensitivity
  • High efficiency

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Pentode Power Output150 V2500——8 mA

Application Notes

Particularly suitable for use when the input is small. By a suitable adjustment of screen and grid bias voltages, this valve may be adjusted to work with very small anode current down to 4 mA.

Datasheets

Datasheet: 220HPT.pdf

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

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