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SR3A

Precision cold-cathode stabilizer maintaining approximately 105 V with high stability, freedom from flicker, and very long service life.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: -

Description

Precision voltage stabilizer/reference tube with molybdenum cathode, extremely long life, high stability, freedom from flicker and low tritium preionization.

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: 2 mA
Regulator maximum current: 80 mA
Regulator starting voltage: 155 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
30mA
Regulation
4 V
20-40mA
Service life
25000 h

Other

Preferred operating-current range
20 to 40 mA