5768
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BrandSylvania
ClassPlanar Triode
BasePlanar / disc seal
Filament6.3V @ 400mA
Construction
Primary TypeTriode
EnvelopePlanar
SectionsSingle
Filament / Heater
Heater NotesIndirectly heated cathode
Absolute Maximum Ratings
Plate Voltage350 V
Plate Dissipation4 W
Audio Performance
Key Features
- Stretched, parallel-wire grid
- Stable, uniform operation
- Unique cathode design
- Disc-seal type construction
- Low lead inductance
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Characteristics | 180V | 4500 | - | 85 | 4mA |
| Grounded Grid Amplifier, 3000 mc | 150V | - | - | - | 7mA |
Application Notes
The Sylvania Type 5768 is designed for service as a grounded grid amplifier at frequencies up to 3000 mc and may be used with a tuned or untuned input and tuned coaxial line output. Frequency ratios of about 4 to 1 for continuous tuning can be obtained up to 1000 mc with no dead spots.
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