Tube-number record

4518

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BrandRCA

ClassPhotomultiplier Tube

BaseDiheptal

Construction

Primary Type

Other / 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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