Tube-number record
11BQ11
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BrandGeneral Electric
ClassDissimilar Double Pentode
BaseCompactron
Filament11.2 V @ 0.45 mA
Construction
Primary TypePentode
EnvelopeT-9, Glass
Base MaterialButton
Sections2
Filament / Heater
Warm-up Time11s
Heater NotesHeater current centered at bogey value with restricted variations.
Absolute Maximum Ratings
Plate Voltage330 V
Plate Dissipation2.5 W
Grid 2 Voltage330 V
H-C Voltage200 V
Audio Performance
Key Features
- Compactron design
- Remote-cutoff characteristics in section 1
- Sharp-cutoff characteristics in section 2
- Designed for TV IF amplifier stages
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Section 1 (Remote-cutoff) | 125 V | 8400 | 200000 | — | 13 mA |
| Section 2 (Sharp-cutoff) | 125 V | 13000 | 62000 | — | 11 mA |
Application Notes
Intended primarily for use in the intermediate-frequency amplifier stages of television receivers.
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