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

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Tube-number record

8526

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BrandToshiba
ClassMedium-mu twin triode
BaseSubminiature
Filament6.3 V @ 300 mA

Construction

Primary TypeTriode
EnvelopeMetal shell
Base MaterialCeramic
SectionsTwin

Filament / Heater

Heater NotesHeater-cathode type

Absolute Maximum Ratings

Plate Voltage165 V
Plate Dissipation0.95 W
Grid 1 Voltage-55 V
Cathode Current22 mA
H-C Voltage200 V

Audio Performance

Key Features
  • Micro metal miniature construction
  • Metal shell
  • Ceramic stem
  • Designed for general purpose amplifier applications
  • Maintains emission capabilities after long periods of operation under cutoff conditions

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Each section100 V50004000208.5 mA

Application Notes

The 8526 may also be used as a combined oscillator and mixer in high frequency up to VHF range circuit. In on-off control applications, the tube will maintain its emission capabilities after long periods of operation under cutoff conditions.

Datasheets

Datasheet: 8526.pdf

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

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