F134

Federal very-high-power water-cooled triode for RF amplification, oscillation, and Class B modulation. Approximately 150 kW plate dissipation and 20 kV capability place it among extremely large broadcast, communications, and industrial power tubes.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 25 V / 650 A

Description

Federal F-134 very-high-power water-cooled triode for RF amplifier, oscillator and Class B modulator service; 150 kW anode dissipation.

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: 25 V
Nominal heater current: 650 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: 21
Max plate voltage: 20000 V
Max plate dissipation: 150000 W
Max grid dissipation: 4000 W
Max cathode current: 24 A

Highest applicable published maximum ratings promoted; service-specific operating points preserved as parameters.

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

1962 ITT

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

Amplification factor
21

Other

Maximum plate voltage
20000 V
Maximum plate dissipation
150000 W
Maximum cathode/plate current
24 A
Maximum frequency for full ratings
22 MHz
Typical RF plate voltage
18000 V
Typical RF plate current
9.6 A
Typical RF driving power
1.2 kW
Typical RF output power
108 kW

Capacitance

Grid-plate capacitance
105 pF
Grid-filament capacitance
140 pF
Plate-filament capacitance
4 pF

Construction

Cooling method
Water

Data set 02

1962 ITT Industrial and Transmitting Tubes

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

FilamentStartingCurrent
1000 A
Peak Cathode Current
120 A
AnodeCoolingMethod
Water
MaximumOperatingFrequency
22 MHz
Maximum Anode Dissipation
150000 W
Absolute maximum / applicable service

Capacitance

GridPlateCapacitance
105 pF
PlateFilamentCapacitance
4 pF