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ClassOutput Pentode
Filament6.3V @ 0.9mA
Construction
Primary TypePentode
EnvelopeGlass
Filament / Heater
Heater NotesIndirect by A.C.; parallel supply
Absolute Maximum Ratings
Plate Voltage400 V
Plate Dissipation9 W
Grid 2 Voltage425 V
Grid 1 Voltage-1.3 V
Cathode Current55 mA
H-C Voltage50 V
Audio Performance
Typical THD2.3%
Power Output12 W
Key Features
- Indirectly heated
- Parallel supply
- Class AB operation
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical characteristics 1 | 375V | 8000 | 70000 | 23 | 24mA |
| Typical characteristics 2 | 400V | 7000 | 15000 | 23 | 22mA |
Application Notes
Operating conditions provided for Class AB push-pull configuration at 375V and 400V plate potentials.
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