6662/6BJ6
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BrandSylvania
ClassSemi-remote cutoff pentode
BaseMiniature 7-pin (B7G)
Filament6.3V @ 150mA
Construction
Primary TypePentode
EnvelopeT-5 1/2
SectionsSingle
Filament / Heater
Heater NotesDesigned for mobile operation with voltage variations up to +/- 20% in automotive systems.
Absolute Maximum Ratings
Plate Voltage330 V
Plate Dissipation3.3 W
Grid 2 Voltage330 V
Grid 1 Voltage-55 V
H-C Voltage100 V
Audio Performance
Key Features
- Mobile communications use
- Semi-remote cutoff
- Appreciable on-off cycling capability
- Automotive supply compatibility
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A1 Amplifier (Condition 1) | 100V | 3650 | 250000 | - | 9mA |
| Class A1 Amplifier (Condition 2) | 250V | 3600 | 1300000 | - | 9.2mA |
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