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

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Tube-number record

AX228

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BrandEnglish Electric Valve Company
ClassXenon Filled Rectifier
BaseScrew / Edison base

Construction

Primary TypeOther / special
Rectifier TypeHot cathode
EnvelopeGlass
SectionsSingle

Filament / Heater

MaterialOxide coated
Warm-up Time30s

Absolute Maximum Ratings

Plate Voltage13000 V
Cathode Current1500 mA

Audio Performance

Key Features
  • Hot cathode
  • Xenon filled
  • High peak inverse voltage
  • Operates over wide ambient temperature range
  • Direct replacement for AH221

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Single Phase Full Wave4600 V———1500 mA
Three Phase Half Wave5300 V———1500 mA

Application Notes

The AX228 may be used as a replacement for the AH221 where its peak inverse voltage rating is adequate, offering the advantage that close control of ambient temperature is not required.

Datasheets

Datasheet: AX228.pdf

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

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