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Power - Pentode (NOT beam) ·Pentode

5672

Tiny directly heated subminiature battery power pentode for low-power output amplification with minimal filament consumption.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
5672
Socket code
B5D
Base pins
5
Nominal heater
1.25 V / 50 mA

Description

Directly heated subminiature power pentode for low-power output amplification.

Socket description

Subminiature wire-ended

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
5672
Socket code
B5D
Base pins
5
Nominal heater voltage
1.25 V
Nominal heater current
50 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

5672 - 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

Pentode

X-ray radiationInterelectrode capacitances
Plate resistance
20000 Ω
Transconductance
0.00065 S
Max plate voltage
90 V
Max screen voltage
90 V
Max cathode current
5 mA

Promoted from clearly identified published ratings/characteristics; additional operating points, capacitances, rectifier conditions, and application-specific values are retained in TUBE_SECTION_PARAMETER.

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

1957 Philips Receiving and Amplifying Tubes

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristics

  • Plate Voltage

    67.5 V

  • Screen Voltage

    67.5 V

  • Anode Current

    3.1 mA

Other

  • Power Output

    0.065 W

    ClassA

Data set 02

195X General Electric Essential Characteristics

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • Plate Voltage

    67.5 V

    ClassA

  • Screen Voltage

    67.5 V

    ClassA

  • Grid Voltage

    -6.5 V

    ClassA

  • Plate Current

    3.25 mA

    ClassA

  • Screen Current

    1.1 mA

    ClassA

  • Load Resistance

    20000 ohm

    ClassA

  • Power Output

    0.065 W

    ClassA

Data set 03

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • Heater voltage

    1.25 V

    Nominal

  • Heater current

    70 mA

    Nominal

  • Plate voltage

    90 V

    Published operating table; OperatingPoint1

  • Plate voltage

    67.5 V

    Published operating table; OperatingPoint1

  • Screen voltage

    90 V

    Published operating table; OperatingPoint1

  • Screen voltage

    67.5 V

    Published operating table; OperatingPoint1

Characteristic

  • Plate current

    3.25 mA

    Published operating table; OperatingPoint1

  • Screen current

    1.1 mA

    Published operating table; OperatingPoint1

  • Transconductance

    650 uS

    Published operating table; OperatingPoint1

Data set 04

1963 Philips Electron Tubes Handbook V1

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • Plate voltage

    67.5 V

    ClassA

  • Screen voltage

    67.5 V

    ClassA

  • Control-grid voltage

    -6.5 V

    ClassA

  • Plate current

    3.1 mA

    ClassA

  • Screen current

    0.95 mA

    ClassA

  • Load resistance

    20000 Ω

    ClassA

  • Power output

    65 mW

    ClassA

  • Total distortion

    10 %

    ClassA

Characteristic

  • Transconductance

    650 µS

    Section1

Data set 05

1966 Tung Sol Electronic Tubes 3 of 4

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • Plate voltage

    67.5 V

    ClassA

  • Grid #2 voltage

    67.5 V

    ClassA

  • Grid #1 voltage

    -6.5 V

    ClassA

  • Plate current

    3.25 mA

    ClassA

  • Grid #2 current

    1.1 mA

    ClassA

  • Load resistance

    20000 ohm

    ClassA

  • Power output

    65 mW

    ClassA

  • Total harmonic distortion

    10 %

    ClassA

Characteristic

  • Transconductance

    650 uS

    ClassA

Data set 06

1968 Mazda Belvu

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • Power Output

    65 mW

    Plate 67.5 V;Screen 67.5 V

Data set 07

1999 Philips 0-D

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristics

  • Heater voltage

    1.25 V

  • Heater current

    50 mA

  • Plate voltage

    67.5 V

  • Screen voltage

    67.5 V

  • Plate current

    3.1 mA

  • Screen current

    0.95 mA

  • Transconductance

    650 uS

Other

  • Load resistance

    20000 ohm

    ClassA

  • Output power

    0.065 W

    ClassA