4802
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BrandRCA
ClassPhotomultiplier Tube
BaseSmall-Shell Bidecal 20-Pin (B20-102)
FilamentV @ mA
Construction
Primary TypeIn-Line, Electrostatic-Focus
EnvelopeBorosilicate Glass (Corning No. 7056)
Base MaterialBeryllium-Oxide Secondary-emitting surface
Sections12-stage
Filament / Heater
Absolute Maximum Ratings
Plate Voltage2000 V
Grid 2 Voltage300 V
Grid 1 Voltage400 V
Cathode Current0.5 mA
Audio Performance
Key Features
- 12-Stage Type
- S-11 Spectral Response
- Copper-Beryllium Dynodes
- Flat Faceplate for Mounting Scintillators
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| E = 1500V DC Supply | 1500V | - | - | 4000000 | - |
Application Notes
Operation or storage in environments where helium is present should be avoided. Electrostatic shielding must be connected to the cathode terminal.
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