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Specialized - Photo Tube ·PhotoemissiveDetector

929

Vacuum cesium photoelectric cell for light detection and measurement applications.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
-
Base pins
8
Nominal heater
-

Description

Mazda 929 is a vacuum cesium photoelectric cell for light detection. The datasheet specifies anode-voltage and photocurrent limits together with sensitivity data.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
-
Base pins
8
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
250 V
Max cathode current
0.005 mA

Vacuum cesium photocell.

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

1960 Mazda

Published operating points and test conditions from this source.

SECTION 1

PhotoemissiveDetector

Capacitance

  • Interelectrode capacitance

    2.6 pF

Other

  • Mean cathode current maximum

    5 uA

  • Peak cathode current maximum

    20 uA

Characteristic

  • White-light sensitivity

    70 uA/lumen

  • Sensitivity cutoff wavelength

    7000 Angstrom