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Power - Beam (NOT sweep) ·BeamPower

6BU5

High-voltage beam pentode designed primarily as a shunt voltage regulator in color-television high-voltage supplies, operating at plate potentials around 20 kV.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
6BU5
Socket code
B12C
Base pins
8
Nominal heater
6.3 V / 150 mA

Description

6BU5 is a Pentode device. High-voltage beam pentode intended primarily as a shunt voltage regulator in color-television high-voltage supplies.

Socket description

Duodecar 12-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
6BU5
Socket code
B12C
Base pins
8
Nominal heater voltage
6.3 V
Nominal heater current
150 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

6BU5 - 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

Beam Power

X-ray radiationInterelectrode capacitances
Transconductance
0.0055 S
Max plate voltage
20000 V
Max screen voltage
100 V
Max plate dissipation
20 W
Max screen dissipation
0.1 W
Max cathode current
2.5 mA

Published maximum ratings, operating characteristics, rectifier data, and capacitances reviewed.

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

195X General Electric Essential Characteristics

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Other

  • Maximum plate voltage

    20000 V

    Published handbook rating

  • Maximum screen voltage

    100 V

    Published handbook rating

  • Plate voltage

    20000 V

    ClassA

  • Screen voltage

    70 V

    ClassA

  • Control-grid bias

    2.4 V

    ClassA

  • Plate current

    1 mA

    ClassA

  • Screen current

    0.5 mA

    ClassA

  • Maximum plate dissipation

    20 W

    HighVoltageShuntRegulator

  • Maximum screen dissipation

    0.1 W

    HighVoltageShuntRegulator

  • Maximum DC cathode current

    2.5 mA

    HighVoltageShuntRegulator

Characteristic

  • Transconductance

    5500 µS

    Published handbook characteristic

  • Heater voltage

    6.3 V

    Published heater rating

  • Heater current

    150 mA

    Published heater rating

Capacitance

  • Input capacitance

    3 pF

    Published capacitance column

  • Output capacitance

    0.9 pF

    Published capacitance column

  • Grid-to-plate capacitance

    0.024 pF

    Published capacitance column

Data set 02

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Other

  • Plate Voltage

    20000 V

    Published operating/characteristic table

  • Screen Voltage

    70 V

    Published operating/characteristic table

  • Grid Voltage

    2.4 V

    Published operating/characteristic table

Characteristic

  • Plate Current

    1 mA

    Published operating/characteristic table

  • Screen Current

    0.4 mA

    Published operating/characteristic table

Data set 03

1966 Tung Sol Electronic Tubes 1 of 4

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Capacitance

  • Grid1-to-plate capacitance

    0.024 pF

  • Input capacitance

    3 pF

  • Output capacitance

    0.9 pF

Other

  • Plate voltage

    20000 V

    TVHighVoltageRegulator

  • Plate current

    1 mA

    TVHighVoltageRegulator