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Voltage Regulator ·VoltageRegulator

SR54

Molybdenum-cathode voltage-reference tube designed for exceptional life, high stability, and freedom from flicker over 1.5–3.5 mA.

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

Description

Voltage reference tube with molybdenum cathode, extremely long life, high stability and freedom from flickering; stabilizing range 1.5-3.5 mA.

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
82 V
Regulator minimum current
1.5 mA
Regulator maximum current
3.5 mA
Regulator starting voltage
115 V
Regulator maintaining voltage
82 V

Published electrical characteristics preserved in parameter rows; regulator-specific fields promoted where applicable.

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

Other

  • Breakdown voltage A-K

    115 V

  • Typical supply voltage

    350 V

  • Typical operating current

    2.5 mA

Characteristics

  • Stabilized voltage at 3.5 mA

    92 V

  • Stabilized voltage at 1.5 mA

    82 V

  • Operating current

    1.5 to 3.5 mA

  • Regulation over 1.5-3.5 mA

    3 V

  • Voltage jumps

    100 mV

    1.5-3.5 mA

  • Life expectancy

    10000 to - h

    Exceeding