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

Pre (2,630 tube types), Other (2,603 tube types), Power (1,292 tube types), Rectifier (816 tube types)
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Tube-number record

UX-213

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UX-213 is a tube type in the TubeDatabase archive (class: Full-wave rectifier). Recorded specifications: brand Rectron, construction Vacuum, socket Special / none, and maximum plate voltage 220 V. The archive does not yet hold a photographed example of this type.

BrandRectron
ClassFull-wave rectifier
BaseSpecial / none

Construction

Primary TypeVacuum
Rectifier Typefull-wave
EnvelopeGlass
Sections2

Filament / Heater

Absolute Maximum Ratings

Plate Voltage220 V
Cathode Current65 mA

Audio Performance

Key Features
  • Full-wave rectifier tube
  • Large standard UX base
  • Supplies D.C. power from A.C. source

Application Notes

The filament voltage should be maintained between 4.5 and 5.5 volts. Higher voltage will shorten the life, and lower voltage will reduce the output and possibly cause overheating of the plate. A. C. input voltage should never exceed 220 volts per anode (440 volts across both).

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