4464
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BrandRCA
ClassMultiplier Phototube
BaseMedium-Shell Diheptal 14-Pin
Construction
Primary TypePhotomultiplier
EnvelopeJ24
Base MaterialNon-hygroscopic
Sections10-stage
Filament / Heater
Absolute Maximum Ratings
Plate Voltage2000 V
Grid 2 Voltage300 V
Grid 1 Voltage600 V
Cathode Current1 mA
Audio Performance
Key Features
- Head-on type
- Flat-faceplate
- Low dark current
- High sensitivity over wide spectrum
- Semitransparent Multialkali cathode
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Supply Voltage E = 2000V | 2000V | - | - | 1600000 | - |
| Supply Voltage E = 1500V | 1500V | - | - | 31000 | - |
Application Notes
Recommended average anode current should be well below 1 mA for stability. For maximum stability, do not exceed 10 microamperes.
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