A 310
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BrandPhilips
ClassTriode
BaseA 32 (4-pin)
FilamentV @ mA
Construction
Primary TypeTriode
EnvelopeGlass
Sections1
Filament / Heater
MaterialThoriated Tungsten
Absolute Maximum Ratings
Plate Voltage100 V
Cathode Current10 mA
Audio Performance
Key Features
- Low filament current
- High vacuum receiving lamp
- Suitable for detection, HF and LF amplification
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Amplifier | 80V | 400 | 25000 | 10 | - |
| Amplifier | 100V | 400 | 25000 | 10 | 2.5mA |
| Detector | 20V | - | - | - | - |
Application Notes
Requires a variable filament resistor of at least 30 Ohms. Avoid applying excessive filament voltage to prevent damage.
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