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

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Tube-number record

8212

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BrandSYLVANIA
ClassMedium Mu Triode
BaseNoval (B9A)
Filament6.3 V @ 460 mA

Construction

Primary TypeTriode
EnvelopeT-6 1/2
SectionsSingle

Filament / Heater

Heater NotesParallel or Series connection

Absolute Maximum Ratings

Plate Voltage300 V
Plate Dissipation10 W
Cathode Current75 mA
H-C Voltage200 V

Audio Performance

Key Features
  • Long life
  • Stable performance under high altitude
  • Severe shock and vibration resistant
  • Cathode follower applications

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Class A105 V290009652825 mA

Application Notes

The Type 8212 is a miniature 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: 8212.pdf

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

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