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Other (3257), Pre (2314), Power (1030), Rectifier (740)
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5V3A / 5AU4

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BrandRCA
ClassFull-Wave Vacuum Rectifier
BaseOctal

Construction

Primary TypeRectifier
Rectifier TypeVacuum
EnvelopeGlass
Sections2

Filament / Heater

Absolute Maximum Ratings

Plate Voltage1550 V
Cathode Current415 mA

Audio Performance

Key Features
  • Full-wave vacuum rectifier
  • High DC requirements
  • Glass octal envelope

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Capacitor-Input Filter425V-50-350mA
Choke-Input Filter500V---350mA

Application Notes

Vertical mounting is preferred, but horizontal mounting is permissible if pins 2 and 4 are in vertical plane. Adequate ventilation is essential.

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