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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

HALF-WAVE GAS RECTIFIER

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HALF-WAVE GAS RECTIFIER is a tube type in the TubeDatabase archive (class: Rectifier). Recorded specifications: brand TUNG-SOL, year 1946, construction Rectifier, socket Octal, and maximum plate voltage 300 V. The archive does not yet hold a photographed example of this type.

BrandTUNG-SOL
ClassRectifier
BaseOctal

Construction

Primary TypeRectifier
Rectifier TypeHalf-wave
EnvelopeT-7
Sections1

Filament / Heater

MaterialIonically heated

Absolute Maximum Ratings

Plate Voltage300 V
Cathode Current74 mA

Audio Performance

Key Features
  • Ionically heated emitter
  • Starter anode for direct operation from 117-volt AC or DC line
  • Half-wave gas rectifier
  • Mounting position: Any

Application Notes

Starter anode connected to the anode through a 0.02 µF condenser. Pins 7 and 8 must be connected together. Intermittent operation is undesirable.

Filters

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