Skip to main content

Voltage Regulator ·VoltageRegulator

G551K

Miniature cold-cathode gas-filled voltage stabilizer providing approximately 55 V over a broad 2–30 mA operating range.

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

Description

Miniature cold-cathode gas-filled voltage stabilizer providing approximately 55 V stabilized output for industrial and radio equipment.

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
Max cathode current
75 mA
Regulator voltage
55 V
Regulator minimum current
2 mA
Regulator maximum current
30 mA
Regulator starting voltage
90 V
Regulator maintaining voltage
55 V

Published ratings/characteristics promoted where applicable.

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

1946 Standard Telephone and Cables

Published operating points and test conditions from this source.

SECTION 1

Voltage Regulator

Other

  • Maximum stabilising voltage at 30 mA

    60 V

    Published datasheet value

  • Maximum peak current

    75 mA

    Published datasheet value

Characteristic

  • Minimum stabilising voltage at 2 mA

    50 V

    Published datasheet value

Data set 02

1958 Brimar Radio Valve No 7

Published operating points and test conditions from this source.

SECTION 1

Voltage Regulator

Characteristic

  • Stabilising / Maintaining Voltage

    55 V

Other

  • Maximum Continuous Operating Current

    30 mA

  • Maximum Peak Current

    75 mA

    10 seconds maximum