GL927

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

Gas phototube for low-illumination photoelectric applications.

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

Max plate voltage: 90 V

Phototube has no dedicated canonical SectionType; applicable published electrical ratings/characteristics are promoted where schema fields exist and other data are preserved in TUBE_SECTION_PARAMETER.

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

1968 General Electric Co

Published operating points and test conditions from this source.

SECTION 1

PhotoemissiveDetector

Characteristic

Luminous sensitivity at
90 V
Published datasheet value; semantic OCR text extraction.
Interelectrode capacitance
2 pF
Published datasheet value; semantic OCR text extraction.
Wavelength of maximum response
7500 angstroms
Published datasheet value; semantic OCR text extraction.
Sensitivity at maximum response
0.015 microampere per microwatt
Published datasheet value; semantic OCR text extraction.