6BK7-B
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BrandGeneral Electric
ClassTwin Triode
BaseSmall Button 9-Pin
Filament6.3V @ 0.45mA
Construction
Primary TypeTwin Triode
EnvelopeT-6 1/2
Base MaterialGlass
Sections2
Filament / Heater
Warm-up Time11s
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation2.7 W
Grid 1 Voltage-50 V
H-C Voltage200 V
Audio Performance
Key Features
- High gain
- Low noise figure
- Cascode amplifier
- Miniature construction
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A Amplifier (Each Section) | 150V | 9300 | 4600 | 43 | 18mA |
Application Notes
Designed primarily for use as a cascode amplifier at frequencies below approximately 300 megacycles. Especially useful as RF amplifier in VHF TV tuners or IF preamplifier in UHF tuners.
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