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Voltage Regulator ·VoltageRegulator

OB2WA

Rugged special-quality 108 V gas regulator for military and industrial service, with published high shock and vibration resistance.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
B7G
Base pins
7
Nominal heater
-

Description

Special-quality ruggedized cold-cathode voltage stabilizer with approximately 108 V maintaining voltage.

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
7
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
108 V
Regulator minimum current
5 mA
Regulator maximum current
30 mA
Regulator starting voltage
130 V
Regulator maintaining voltage
108 V

Special-quality shock- and vibration-resistant voltage stabilizer.

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

1963 Philips Electron Tubes Handbook V2

Published operating points and test conditions from this source.

SECTION 1

Voltage Regulator

Characteristic

  • Maintaining voltage at 5 mA

    104 to 106 V

    LifeRange

  • Maintaining voltage at 30 mA

    109 to 112 V

    LifeRange

  • Ignition voltage

    - to 130 V

    Maximum

  • Voltage regulation

    3 to 4 V

    Ia=5-30mA; life-dependent

  • Leakage current

    - to 5 uA

    Maximum

Other

  • Operating current minimum

    5 mA

  • Operating current maximum

    30 mA

  • Maximum starting current

    - to 75 mA

  • Maximum shunt capacitance

    - to 0.1 uF

Data set 02

1963 Philips Electron Tubes Handbook V3

Published operating points and test conditions from this source.

SECTION 1

Voltage Regulator

Characteristic

  • Maintaining voltage nominal

    108 V

    VoltageRegulator

  • Regulation maximum

    3 V

    5To30mA

  • Noise output maximum

    100 mV

    VoltageRegulator

Other

  • Maintaining current minimum

    5 mA

    VoltageRegulator

  • Maintaining current maximum

    30 mA

    VoltageRegulator

  • Starting voltage maximum

    130 V

    VoltageRegulator

  • Starting current maximum

    75 mA

    10Seconds

  • Shunt capacitance maximum

    0.1 µF

    VoltageRegulator

  • Shock resistance approximately

    900 g

    SpecialQuality

  • Vibration resistance

    2.5 g

    SpecialQuality