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Specialized - Photo Tube ·PhotoemissiveDetector

PES0

Photoemissive phototube designed for light measurement, relay, or industrial photoelectric detection.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
-

Description

Miniature gas-filled photo-cell with a caesium-oxygen-silver cathode, maximum sensitivity in the red and infrared region.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
-
Base pins
-
Nominal heater voltage
-
Nominal heater current
-
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

1 physical section, each with unique specifications.

Section 1

PhotoemissiveDetector

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Explicit legacy/alternate designation printed on PE50 datasheet.

Source-dependent data

Operating conditions by source

Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.

Data set 01

1961 Associated Electrical Industries

Published operating points and test conditions from this source.

SECTION 1

PhotoemissiveDetector

Characteristics

  • Maximum gas amplification factor

    10

Other

  • Maximum working voltage

    90 V

  • Maximum average cathode current

    2.5 uA

    30s

  • Maximum peak cathode current

    8 uA