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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

COMBINED HALF WAVE RECTIFIER AND BEAM POWER AMPLIFIER

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BrandTUNG-SOL
ClassMulti-unit Rectifier and Audio Output
BaseOctal
Filament117 V @ 0.09 mA

Construction

Primary TypeMulti-section
Rectifier TypeHalf-wave
EnvelopeT-9 Glass Bulb
Base MaterialIntermediate Shell
Sections2

Filament / Heater

Heater NotesAC or DC connection directly across line

Absolute Maximum Ratings

Plate Voltage117 V
Plate Dissipation5.5 W
Grid 2 Voltage117 V
H-C Voltage175 V

Audio Performance

Typical THD6%
Power Output1.2 W
Key Features
  • Coated Unipotential Cathode
  • Designed for connection directly across a 117-volt supply line

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Class A1 Amplifier100 V700016000—51 mA

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