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Tube Tinker — Electron Tube Database
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Specialized - Photo Tube ·Photomultiplier

4438

Ten-stage S-11 photomultiplier tube.

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

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

Photomultiplier

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Ten-stage S-11 head-on photomultiplier; cesium-antimony photocathode.

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

9999 Mixed D 1000

Published operating points and test conditions from this source.

SECTION 0

Photomultiplier

Other

  • Maximum plate voltage

    1250 V

    Maximum anode-cathode supply voltage; for 4441A inherited from 4441 manufacturer equivalence

Characteristics

  • Wavelength of maximum response

    440 nm

    Wavelength of maximum spectral response

Capacitance

  • Anode to all other electrodes capacitance

    5.5 pF

    Approximate anode capacitance to all other electrodes