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Power - Triode (over 1000V 100W) ·Triode

880

Water-cooled high-power transmitting triode widely used in broadcasting and industrial RF heating. Published Class C operation provides approximately 40 kW RF output from a 10 kV plate supply.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
12.6 V / 315 A

Description

Water-cooled high-power transmitting triode widely used in broadcasting stations and RF heating.

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
12.6 V
Nominal heater current
315 A
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
Amplification factor
20
Max plate voltage
15000 V
Max plate dissipation
20000 W
Max cathode current
7 A

Maximum ratings and general characteristics promoted from the printed service tables.

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 General Electric Transmitting Types

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Maximum Plate Voltage

    15000 V

  • Maximum Plate Dissipation

    15000 W

  • Maximum Cathode Current

    7 A

  • Maximum Signal Power Output

    46 kW

    AudioFrequency,ClassB

Data set 02

1958 Amperex Industrial

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Plate voltage

    10000 V

    RFPowerAmplifier;ClassC

  • Plate current

    6 A

    RFPowerAmplifier;ClassC

  • Power output

    40000 W

    RFPowerAmplifier;ClassC

  • Control-grid voltage

    -1200 V

    RFPowerAmplifier;ClassC

  • Grid current

    800 mA

    RFPowerAmplifier;ClassC

  • Maximum frequency at full input

    25 MHz

    RFPowerAmplifier

Capacitance

  • Grid-to-plate capacitance

    26 pF

    Section1

  • Grid-to-filament capacitance

    29 pF

    Section1

  • Plate-to-filament capacitance

    2.6 pF

    Section1

Data set 03

1963 Amperex Condensed

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Plate voltage

    10000 V

    RFPowerAmplifier

  • Plate current

    6 A

    RFPowerAmplifier

  • Power output

    40000 W

    RFPowerAmplifier

  • Control-grid voltage

    -1200 V

    RFPowerAmplifier

  • Grid current

    800 mA

    RFPowerAmplifier

  • Maximum frequency at full input

    25 MHz

    RFPowerAmplifier

Capacitance

  • Grid-to-plate capacitance

    26 pF

    Section1

  • Grid-to-filament capacitance

    29 pF

    Section1

  • Plate-to-filament capacitance

    2.6 pF

    Section1

Data set 04

1971 Machlette Laboratories

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Amplification factor

    20

Other

  • Maximum DC plate voltage

    12500 V

  • Maximum plate dissipation

    20000 W

  • Maximum plate/cathode current

    7 A