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

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Tube-number record

8213

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BrandSYLVANIA
ClassTriode
BaseSubminiature
Filament6.3 V @ 380 mA

Construction

Primary TypeTriode
EnvelopeT-3
SectionsSingle

Filament / Heater

Heater NotesParallel or Series connection

Absolute Maximum Ratings

Plate Voltage300 V
Grid 1 Voltage-40 V
Cathode Current50 mA
H-C Voltage200 V

Audio Performance

Key Features
  • Subminiature
  • Long life
  • Severe shock resistance
  • High temperature operation
  • Stable performance
  • Unipotential cathode

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Average Characteristics105 V230001348—23 mA

Application Notes

The Type 8213 is a subminiature medium mu triode intended primarily for cathode follower applications. It is characterized by long life and stable performance under conditions of high altitude, severe shock, vibration, and high temperature.

Datasheets

Datasheet: 8213.pdf

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

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