SR 43
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ClassVoltage reference tube
BaseSubminiature soldering connections
Construction
Primary TypeCold molybdenum cathode
EnvelopeSubminiature
SectionsSingle with auxiliary firing anode
Filament / Heater
Absolute Maximum Ratings
Plate Voltage210 V
Cathode Current2 mA
Audio Performance
Key Features
- Cold molybdenum cathode
- Subminiature size
- Soldering connections
- Independence of illumination
- Yellow dot marker
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Stabilizer | 147.5V | - | - | - | 1mA |
Application Notes
The anode Az may be used as firing anode: a small current in this anode causes firing of the main anode when the applied voltage exceeds the stabilized voltage by a few volts. Breakdown voltage is independent of illumination.
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