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Voltage Regulator ·VoltageRegulator

SR45

Subminiature cold-cathode 105 V reference tube operating over approximately 1–5 mA for precision stabilization.

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

Description

Subminiature cold-cathode voltage reference tube for a 1-5 mA stabilizing range with 105 V nominal stabilized voltage.

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

Voltage Regulator

X-ray radiationInterelectrode capacitances
Regulator voltage
105 V
Regulator minimum current
1 mA
Regulator maximum current
5 mA
Regulator starting voltage
149 V
Regulator maintaining voltage
105 V

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

1962 Cerberus

Published operating points and test conditions from this source.

SECTION 1

Voltage Regulator

Characteristics

  • Stabilized voltage

    102 to 107 V

    1.5mA

  • Voltage regulation maximum

    5 V

    1-4mA

  • Current for full glow coverage

    3 mA

  • Stabilized-voltage change over 20000 h maximum

    5 V

    1.5mA

  • Service life minimum

    30000 h