GL441

High-vacuum two-electrode phototube with high visible-light sensitivity and excellent stability. Its spectral response is centered in the visible region for direct photoelectric measurement without internal multiplication.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: -

Description

The GL-441 is a high-vacuum two-electrode phototube with high sensitivity to light, excellent stability, and spectral response centered in the visible 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 0

PhotoemissiveDetector

X-ray radiationInterelectrode capacitances

Max plate voltage: 250 V

Phototube section; maximum anode voltage promoted and optical/sensitivity data retained as parameters.

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 0

PhotoemissiveDetector

Characteristic

Luminous Sensitivity
45 uA/lumen
250V 0Cycles
Wavelength of Maximum Response
4000 angstrom
Sensitivity at Maximum Response
0.04 uA/uW

Other

Maximum Dark Current
0.1 uA
250V