Voltage Regulator ·VoltageRegulator
Precision 150 V glow-discharge voltage regulator for stable reference and shunt-regulator service.
SR57 is a printed exact equivalent/co-designation on the STR15015 source sheet. A cold-cathode glow-discharge voltage regulator for automatic, inertia-free stabilization of a DC voltage, designed for high temporal constancy.
General specifications
Properties common to every published source and operating point.
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
1 physical section, each with unique specifications.
Section 1
Published electrical characteristics preserved in parameter rows; regulator-specific fields promoted where applicable.
Source-dependent data
Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.
Data set 01
Published operating points and test conditions from this source.
Nominal maintaining voltage
150 V
Voltage variation over current range
4.5 V
Warm-up / stabilization time
10 min
Current range
5 to 15 mA
Nominal current
10 mA
Data set 02
Published operating points and test conditions from this source.
Breakdown voltage A-K
180 V
Typical supply voltage
440 V
Typical operating current
8 mA
Stabilized voltage at 10 mA
145 to 154 V
Operating current
5 to 15 mA
Regulation over 5-15 mA
5 V
Internal resistance
250 ohm
Life expectancy
10000 to - h
Exceeding