Tube-number record
8CB11
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BrandGeneral Electric
ClassCompactron Twin Pentode
BaseCompactron
Filament8.4 V @ 600 mA
Construction
Primary TypePentode
EnvelopeT-9
Base MaterialGlass
Sections2
Filament / Heater
Warm-up Time11s
Heater NotesHeater current is centered at the specified bogey value
Absolute Maximum Ratings
Plate Voltage330 V
Plate Dissipation3.1 W
Grid 2 Voltage330 V
H-C Voltage200 V
Audio Performance
Key Features
- Intended for IF amplifier service in color television
- Useful for bandpass, burst, and low-level video amplifier applications
- Internal Shield connected to Pin 7
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Each Section | 125 V | 13000 | 200000 | — | 11 mA |
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