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Voltage Regulator ·VoltageRegulator

SR52

High-stability cold-cathode voltage-reference tube for precision operation over approximately 3.5–6 mA.

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

Description

Molybdenum-cathode voltage reference tube with high stability for a narrow 3.5-6.0 mA stabilizing range.

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 minimum current
3.5 mA
Regulator maximum current
6 mA
Regulator starting voltage
130 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

    82.6 to 84.1 V

    4.5mA

  • Dynamic resistance

    110 to 330 Ohm

    4.5mA

  • Temperature coefficient

    -0.35 mV/C

    25-120C

  • Voltage jumps maximum

    1 mV

    3.5-6.0mA

  • RMS noise voltage

    100 uV

    4.5mA,30-10000Hz

  • Service life minimum

    10000 h

Other

  • Inverse anode voltage maximum

    50 V

  • Starting current maximum

    10 mA