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Voltage - Triode (single high frequency) ·Triode

6K4

Subminiature flexible-lead general-purpose triode for compact high-frequency equipment, specified for operation around 500 MHz.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
6K4
Socket code
-
Base pins
-
Nominal heater
6.3 V / 150 mA

Description

Subminiature flexible-lead general-purpose triode for compact high-frequency equipment, specified for operation around 500 MHz.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
6K4
Socket code
-
Base pins
-
Nominal heater voltage
6.3 V
Nominal heater current
150 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

6K4 - 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

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
4650 Ω
Transconductance
0.00345 S
Amplification factor
16
Max plate voltage
250 V
Max plate dissipation
3 W
Max cathode current
20 mA

Published electrical data translated from the supplied Chinese-language source; repeated identical sections are compressed per project rules.

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

1950 Sylvania

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Plate Resistance

    4650 ohm

  • Transconductance

    3450 µS

  • Amplification Factor

    16

Other

  • Maximum Plate Voltage

    250 V

  • Maximum Plate Dissipation

    3 W

  • Maximum Cathode Current

    20 mA

  • Plate Voltage

    200 V

  • Plate Current

    11.5 mA

  • RF Output Power

    0.75 W

    Approximately 500 MHz

Data set 02

195X General Electric Essential Characteristics

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Maximum plate voltage

    250 V

    Published handbook rating

  • Plate voltage

    200 V

    ClassA

  • Plate current

    11.5 mA

    ClassA

Characteristic

  • Plate resistance

    4650 ohm

    Published handbook characteristic

  • Transconductance

    3450 µS

    Published handbook characteristic

  • Amplification factor

    16

    Published handbook characteristic

  • Heater voltage

    6.3 V

    Published heater rating

  • Heater current

    150 mA

    Published heater rating

Capacitance

  • Input capacitance

    2.4 pF

    Published capacitance column

  • Output capacitance

    0.8 pF

    Published capacitance column

  • Grid-to-plate capacitance

    2.4 pF

    Published capacitance column

Data set 03

198X Shuguang

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

  • Heater voltage

    6.3 V

    Nominal

  • Heater current

    300 mA

    Nominal

  • Plate voltage

    250 V

    Published principal electrical parameter