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

Other (3,257 tube types), Pre (2,314 tube types), Power (1,030 tube types), Rectifier (740 tube types)
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Tube-number record

5AS4A

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BrandSylvania
ClassFull-Wave Rectifier
BaseOctal

Construction

Primary TypeRectifier
Rectifier TypeFull-Wave
EnvelopeT-12
Base MaterialShort Medium Shell
Sections2

Filament / Heater

MaterialCoated

Absolute Maximum Ratings

Plate Voltage1550 V

Audio Performance

Key Features
  • Filamentary full-wave high vacuum rectifier
  • Designed for TV receivers
  • High current capacity

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Full Wave Rectifier—Capacitor Input Filter300 V—21—300 mA
Full Wave Rectifier—Capacitor Input Filter450 V—67—275 mA
Full Wave Rectifier—Choke Input Filter550 V———

Application Notes

The Sylvania Type 5AS4A is designed for service in the power supply of television receivers or other equipment requiring high current. Horizontal operation is permitted if Pins 1 and 4 are in a vertical plane.

Datasheets

Datasheet: 5AS4A.pdf

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

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    275 mA