Tube-number record
6AU8
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BrandTung-Sol
ClassTriode-Pentode
BaseNoval (B9A)
Filament6.3 V @ 600 mA
Construction
Primary TypeMulti-section
EnvelopeGlass
Base MaterialMiniature Button
Sections2
Filament / Heater
Heater NotesAC or DC
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation4 W
Grid 2 Voltage300 V
H-C Voltage200 V
Audio Performance
Key Features
- Sharp cut-off pentode
- Medium-mu triode
- Controlled heater warm-up cycle
- Separate cathodes
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pentode Section Class A | 200 V | 7000 | 150000 | — | 15 mA |
| Triode Section Class A | 150 V | 4900 | 8200 | 40 | 9 mA |
Application Notes
Designed for 600 mA series heater operated monochrome and color television receivers. Pentode section suited for video amplifier or IF amplifier. Triode section intended for sync amplifier, separator, clipper, or sweep oscillator.
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