6HC8
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BrandSylvania
ClassTriode-Pentode
Base9-pin miniature
Filament6.3V @ 1200mA
Construction
Primary Type9-T9
EnvelopeT-9
SectionsTriode-Pentode
Filament / Heater
Heater NotesMaximum Heater Voltage Range: 5.7-6.9 Volts
Absolute Maximum Ratings
Plate Voltage350 V
Plate Dissipation11 W
Grid 2 Voltage315 V
Grid 1 Voltage-275 V
Cathode Current65 mA
H-C Voltage200 V
Audio Performance
Key Features
- 9-T9 design
- Coated Unipotential Cathode
- Increased heat dissipation safety margin
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Triode Section | 250V | 2000 | 34000 | 68 | 1.4mA |
| Pentode Section | 250V | 5100 | 55000 | 8.7 | 38mA |
Application Notes
Intended to serve the combined functions of vertical deflection oscillator and amplifier in television receivers.
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