85A1
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BrandPhilips
ClassVoltage Reference Tube
BaseLoctal 8p
Construction
Primary TypeCold Cathode Gas Filled
EnvelopeGlass
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage125 V
Cathode Current8 mA
Audio Performance
Key Features
- High precision
- Stable over life
- Low noise
- Uniform noise distribution
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Voltage Stabilization | 85V | - | 285 | - | 4mA |
Application Notes
The tube should be operated only with the cathode negative and the anode positive. Equilibrium conditions are normally reached after 3 minutes. Tube should not be subjected to severe shock or continuous vibration.
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