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Power - Pentode (NOT beam) ·Pentode

CK6418

Extremely low-drain subminiature power pentode with a remarkable 1.25 V, 10 mA filament for wearable electronics.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
1.25 V / 10 mA

Description

Directly heated subminiature power pentode for portable and wearable 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
1.25 V
Nominal heater current
10 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
Plate resistance
420000 Ω
Transconductance
0.0003 S
Max plate voltage
30 V
Max screen voltage
30 V
Max cathode current
0.5 mA

Published electrical limits and characteristics promoted from the approved source; identical repeated sections compressed 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

1938 Raytheon

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • HeaterVoltageNominal

    1.25 V

    Nominal

  • HeaterCurrentNominal

    10 mA

    Nominal

  • Maximum Plate Voltage

    30 V

  • Maximum Screen Voltage

    30 V

  • Maximum Cathode Current

    0.5 mA

Characteristic

  • Transconductance

    300 µS

    Typical

  • Plate Resistance

    420000 ohm

    Typical