Tube-number record
310A
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BrandPhilips
ClassAF Pentode
Base6-pin
Filament10 V @ 0.32 mA
Construction
Primary TypePentode
EnvelopeGlass
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation2 W
Grid 2 Voltage150 V
Audio Performance
Key Features
- Low microphony
- Long life design
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pentode | 180 V | 1600 | 800000 | — | 5.5 mA |
| Pentode | 90 V | 1140 | — | — | 2.1 mA |
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