TH 328
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BrandTHOMSON-CSF
ClassTriode
BasePlanar
Filament5.5V @ 5.4mA
Construction
Primary TypeTriode
EnvelopeCeramic-metal
SectionsSingle
Filament / Heater
Materialoxide coated
Warm-up Time3s
Heater NotesIndirect heating
Absolute Maximum Ratings
Plate Voltage2200 V
Plate Dissipation750 W
Grid 1 Voltage-100 V
Cathode Current2500 mA
Audio Performance
Power Output100 W
Key Features
- Forced air cooled
- Ceramic metal construction
- Planar structure
- High gain
- Linear amplifier operation
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A Linear Amplifier (T.V. Translator) | 1800V | 85000 | - | 180 | 400mA |
Application Notes
Specifically designed for highly linear amplifier operating up to 1000 MHz without grid current in T.V. translators handling both sound and vision signals.
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