R 49
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BrandLa Radiotechnique
ClassPentode
BasePTT 49
Filament6.3V @ 0.3mA
Construction
Primary Typepentode
Sections1
Filament / Heater
Heater NotesIndirect heating (cathode isolated from filament)
Absolute Maximum Ratings
Plate Voltage225 V
Plate Dissipation2.6 W
Grid 2 Voltage225 V
Cathode Current16 mA
H-C Voltage70 V
Audio Performance
Key Features
- A longue durée
- Amplificatrice de tension
- A grande pente
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Voltage Amplifier | 200V | 8500 | 500000 | 4250 | 10.5mA |
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