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Voltage Pentode or Tetrode (under 100V) ·Pentode

DF167

Subminiature low-frequency pentode designed for hearing aids and other very-low-power battery-operated equipment.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
0.625 V / 13.3 mA

Description

Subminiature low-frequency pentode for hearing aids and other very-low-power battery equipment.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
-
Base pins
-
Nominal heater voltage
0.625 V
Nominal heater current
13.3 mA
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

Pentode

X-ray radiationInterelectrode capacitances
Max plate voltage
45 V
Max screen voltage
45 V
Max plate dissipation
0.0015 W
Max screen dissipation
0.0005 W
Max cathode current
0.05 mA

Published ratings and characteristics promoted from the printed technical data.

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

1953 RFT Rundfunk Technik

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • HeaterVoltageNominal

    0.625 V

    Nominal

  • HeaterCurrentNominal

    13.3 mA

    Nominal

  • Maximum Plate Voltage

    45 V

  • Maximum Screen Voltage

    45 V

  • Maximum Plate Dissipation

    0.0015 W

  • Maximum Screen Dissipation

    0.0005 W

  • Maximum Cathode Current

    0.05 mA