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Voltage - Triode (single high frequency) ·Triode

6R4

Radiation-cooled UHF power triode for high-frequency RF service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
6.3 V / 240 mA

Description

6R4 is listed in the supplied Amperex material as a radiation-cooled UHF power triode. Published operating conditions and electrical characteristics were captured from the supplied tables.

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
6.3 V
Nominal heater current
240 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

Triode

X-ray radiationInterelectrode capacitances
Transconductance
0.0055 S
Max plate voltage
300 V
Max plate dissipation
16 W

Published ratings, characteristics, and operating conditions 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

1958 Amperex Industrial

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Maximum plate voltage

    300 V

    Published Amperex table

  • Plate dissipation

    16 W

    Published Amperex table

  • Plate current

    27.7 mA

    Published Amperex table

  • Power output at 750 MHz

    1.1 W

    Published Amperex table

  • Maximum frequency

    1200 MHz

    Published Amperex table

Characteristic

  • Transconductance

    5500 µS

    Published Amperex table

  • Heater/filament voltage

    6.3 V

    Published Amperex table

  • Heater/filament current

    240 mA

    Published Amperex table

Data set 02

1963 Amperex Condensed

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Heater voltage

    6.3 V

    Published heater rating

  • Heater current

    240 mA

    Published heater rating

  • Transconductance

    5500 µS

    UHF

Other

  • Maximum plate dissipation

    16 W

    UHF

  • Maximum plate voltage

    300 V

    UHF

  • Maximum plate current

    27.7 mA

    UHF

  • Power output

    1.1 W

    At 750 MHz

  • Maximum frequency

    1200 MHz

    UHF