Tube-number record
6BR8
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BrandGeneral Electric
ClassTriode-Pentode
BaseNoval (B9A)
Filament6.3 V @ 450 mA
Construction
Primary TypeOther / special
EnvelopeT-6 1/2
Base MaterialGlass
SectionsTriode-Pentode
Filament / Heater
Heater NotesCoated Unipotential Cathode
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation2.8 W
Grid 2 Voltage300 V
H-C Voltage200 V
Audio Performance
Key Features
- Sharp-cutoff pentode
- Medium-mu triode
- Miniature tube
- Combined triode oscillator and pentode mixer
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pentode Section | 250 V | 5200 | 400000 | — | 10 mA |
| Triode Section | 150 V | 8500 | 5000 | 40 | 18 mA |
Application Notes
Intended for service as a combined triode oscillator and pentode mixer in VHF television tuners; suitable for general-purpose applications in both monochrome and color television receivers.
Datasheets
Datasheet: 6BR8.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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