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Tube-number record

8414

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BrandSYLVANIA
ClassPentode
BaseSubminiature
Filament26.5 V @ 45 mA

Construction

Primary TypePentode
EnvelopeT-3
SectionsSingle

Filament / Heater

Heater NotesDesigned for plate operation at 26.5V

Absolute Maximum Ratings

Plate Voltage55 V
Grid 2 Voltage55 V
Grid 1 Voltage-55 V
Cathode Current10 mA
H-C Voltage100 V

Audio Performance

Key Features
  • Frame grid
  • High transconductance
  • Low grid to plate capacitance
  • Shock resistant
  • Vibration resistant

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
VHF RF/IF Amplifier26.5 V500050000—4.5 mA

Application Notes

Well suited to VHF RF and IF amplifier and mixer service at 26.5-V heater and plate operation. Designed for operation under conditions of severe shock, vibration, high temperature and high altitude.

Datasheets

Datasheet: 8414.pdf

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

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