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Voltage Regulator ·VoltageRegulator

QS7520

Miniature 75 V gas stabilizer operating over approximately 2–20 mA for compact regulated DC supplies.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
B7G
Base pins
-
Nominal heater
-

Description

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

Socket description

Miniature 7-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B7G
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
75 V
Regulator minimum current
2 mA
Regulator maximum current
20 mA
Regulator starting voltage
110 V
Regulator maintaining voltage
75 V

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

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

1955 Marconi

Published operating points and test conditions from this source.

SECTION 1

Voltage Regulator

Other

  • VOLTAGE STABILISERS QS9 [1]

    5 V

    VOLTAGE STABILISERS QS95/10

  • VOLTAGE STABILISERS QS9 [2]

    10 V

    VOLTAGE STABILISERS QS95/10

  • Stability {( [1]

    1000

    Stability {(1000 br. period) £2 +7 fish %

  • Stability {( [2]

    2

    Stability {(1000 br. period) £2 +7 fish %

  • Stability {( [3]

    7

    Stability {(1000 br. period) £2 +7 fish %

  • calculating the value of series resistor, an ignition current of approximately

    4 mA

    calculating the value of series resistor, an ignition current of approximately 4 mA should

  • Types QS9 [1]

    5

    Types QS95/10 and QS150/15 are fitted with ignition electrodes to facilitate

  • Types QS9 [2]

    10

    Types QS95/10 and QS150/15 are fitted with ignition electrodes to facilitate

  • Types QS9 [3]

    50

    Types QS95/10 and QS150/15 are fitted with ignition electrodes to facilitate

  • Types QS9 [4]

    15

    Types QS95/10 and QS150/15 are fitted with ignition electrodes to facilitate

  • Stabilized voltage

    75 V

    Published regulated voltage.

  • Tube current minimum

    2 mA

    Minimum maintaining current.

  • Tube current maximum

    20 mA

    Maximum operating current.

  • Ignition voltage

    110 V

    Published minimum or maximum ignition/start voltage as applicable.