Tube-number record
4555
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BrandRCA
ClassPhotomultiplier Tube
BaseCompactron
Construction
Primary TypeMulti-section
EnvelopeSide-On
Base MaterialDuodecar
Sections9-Stage
Filament / Heater
Absolute Maximum Ratings
Plate Voltage1250 V
Grid 2 Voltage250 V
Grid 1 Voltage250 V
Cathode Current0.5 mA
Audio Performance
Key Features
- Bialkali Photocathode
- Circular-Cage Structure
- Electrostatic-Focus Type
- Side-On Type
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Supply Voltage (E) | 1000 V | — | — | 3000000 | 0.0001 mA |
Application Notes
Magnetic shielding recommended. High peak anode current requires non-inductive capacitors across latter stages.
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