SR 52
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ClassVoltage Reference Tube
Base7-pin Miniature
Construction
Primary TypeCold Cathode Gas-filled
EnvelopeMiniature
Sections1
Filament / Heater
Absolute Maximum Ratings
Plate Voltage130 V
Cathode Current10 mA
Audio Performance
Key Features
- Molybdenum cathode
- Extremely long life
- High stability
- Freedom of flickering
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Stabilizer | 82.6V | - | 140 | - | 4.5mA |
Application Notes
Stabilizing range 3.5-6.0 mA. Breakdown voltage is independent of light/darkness. For long life, limit starting current to 30s max and fewer than 2 starts per day. Mounting in any position.
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