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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

20

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BrandRCA
ClassPower Amplifier Triode
Base4-pin

Construction

Primary TypeTriode
EnvelopeT-8
SectionsSingle

Filament / Heater

Absolute Maximum Ratings

Plate Voltage135 V

Audio Performance

Power Output0.11 W
Key Features
  • Dry-battery operated
  • Renewal purposes

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Operation 190 V41580003.33 mA
Operation 2135 V52563003.36.5 mA

Datasheets

Datasheet: 20.pdf

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

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