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Voltage Regulator ·VoltageRegulator

SR53

Long-life 85 V cold-cathode voltage-reference tube equivalent to 0G3 and 85A2.

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

Description

Molybdenum-cathode voltage reference tube with extremely long life, high stability and freedom from flickering; equivalent to 0G3 and 85A2.

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
85 V
Regulator minimum current
1 mA
Regulator maximum current
10 mA
Regulator starting voltage
115 V
Regulator maintaining voltage
85 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

    83 to 87 V

    5.5mA

  • Regulation maximum

    4 V

    1-10mA

  • Temperature coefficient

    -2.2 mV/C

    IA=5.5mA

  • Initial drift

    0.15 %

    2min

  • Stabilized-voltage change over 20000 h maximum

    1 V

  • Service life minimum

    30000 h