Tube-number record
4518
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BrandRCA
ClassPhotomultiplier Tube
BaseDiheptal
Construction
Primary TypeOther / special
EnvelopeT-16
Base MaterialNon-hygroscopic
Sections10-Stage
Filament / Heater
Absolute Maximum Ratings
Plate Voltage2000 V
Grid 2 Voltage250 V
Grid 1 Voltage400 V
Cathode Current0.5 mA
Audio Performance
Key Features
- Bialkali Photocathode
- High Quantum Efficiency
- Circular-Cage Electrostatic-Focus Type
- Head-On Type
- Low light level detection
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Standard Multiplier Operation | 1500 V | — | — | 5000000 | — |
Application Notes
For use in pulse counting and other low light level detection and measurement systems. Operating stability depends on maintaining anode current below 0.5 mA.
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