PEN.231
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BrandMazda
ClassBattery Output Pentode
Base5-Pin
Construction
Primary TypePentode
EnvelopeGlass
Filament / Heater
Absolute Maximum Ratings
Plate Voltage150 V
Grid 2 Voltage150 V
Audio Performance
Typical THD10%
Power Output0.37 W
Key Features
- Low H.T. current consumption
- Designed for battery operated receivers
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pentode | 120V | 5300 | - | - | 5mA |
Application Notes
The filament should be operated off a 2-volt accumulator. No series resistance must be used. Pin No. 3 should be connected to LT-ve and HT-ve. Must always be used under self-bias conditions.
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