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Voltage Regulator ·VoltageRegulator

5651WA

Ruggedized military cold-cathode voltage-reference tube for stable approximately 86 V reference service under high shock conditions.

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

Description

Ruggedized cold-cathode inert-gas voltage-reference tube for stable 86 V reference service.

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
86 V
Regulator minimum current
1.5 mA
Regulator maximum current
3.5 mA
Regulator starting voltage
107 V
Regulator maintaining voltage
86 V

Military cold-cathode voltage-reference section.

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

1960 RCA Industrial and Communications Types

Published operating points and test conditions from this source.

SECTION 1

Voltage Regulator

CrossReference

  • Prototype / equivalent family

    5651

Other

  • Military specification

    MIL-E-1/825A

Data set 02

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Voltage Regulator

Characteristic

  • Operating voltage

    86 V

Other

  • Operating current minimum

    1.5 mA

  • Operating current maximum

    3.5 mA

Data set 03

1966 Tung Sol Electronic Tubes 3 of 4

Published operating points and test conditions from this source.

SECTION 1

Voltage Regulator

Other

  • DC operating current minimum

    1.5 mA

    ReferenceService

  • DC operating current maximum

    3.5 mA

    ReferenceService

  • Maximum shunt capacitor

    0.02 uF

    ReferenceService

  • Maximum shock

    450 G

    Ruggedized

Characteristic

  • Tube voltage drop at 1.5 mA

    84.5 V

    ReferenceService

  • Tube voltage drop at 3.5 mA

    86 V

    ReferenceService

  • Anode breakdown voltage average

    100 V

    ReferenceService

  • Regulation

    1 V

    1.5To3.5mA