QS7540

Single-gap gas stabilizer providing approximately 75 V over a 5–40 mA operating range.

Directly heatedCold cathodeCommon cathodeDissimilar

Description

A gas-filled single-gap voltage stabilizer providing approximately 75 V regulated output for stabilized DC supplies.

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

X-ray radiationInterelectrode capacitances

Published maximum ratings and characteristics audited; remaining useful numerical data retained in parameter table.

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.

SECTION 1

VOLTAGE STABILISER QS1 [1]
50 V
VOLTAGE STABILISER QS150/40
VOLTAGE STABILISER QS1 [2]
40 V
VOLTAGE STABILISER QS150/40
Stability {( [1]
1000
Stability {(1000 hr, period) *2 ¥2 %
Stability {( [2]
2
Stability {(1000 hr, period) *2 ¥2 %
Stability {( [3]
2
Stability {(1000 hr, period) *2 ¥2 %
Published value
10 mA
10 mA should be allowed in addition to the load current.
Stabilized voltage
75 V
Published regulated voltage.
Tube current minimum
5 mA
Minimum maintaining current.
Tube current maximum
40 mA
Maximum operating current.
Ignition voltage
105 V
Published minimum or maximum ignition/start voltage as applicable.