Skip to main content
Tube Tinker — Electron Tube Database
Alternatives & variationsDownload PDF datasheet

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

ESA5000

Industrial transmitting power triode intended for RF amplification, oscillation, or modulation. Manufacturer data emphasize substantial RF output, professional transmitter operation, and power-handling construction rather than receiving-tube service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
11 V / 125 A

Description

Directly heated forced-air-cooled triode designed for radio-frequency amplifier or oscillator service and particularly suited to R.F. heating equipment; previously designated EHA.5000.

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
11 V
Nominal heater current
125 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
Plate resistance
2000 Ω
Transconductance
0.01 S
Amplification factor
20
Max plate voltage
8500 V
Max plate dissipation
5000 W
Max cathode current
9 A

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

1961 AEI Industrial Valves

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • MaximumFilamentEmission

    9 A

  • MaximumOperatingFrequencyFullRating

    25 MHz

  • MainCoolingAirflow

    500 ft3/min

    ForcedAir

  • SealCoolingAirflow

    15 ft3/min

    ForcedAir

Characteristics

  • Anode Grid Capacitance

    20.7 pF

  • AnodeFilamentCapacitance

    2.5 pF

  • GridFilamentCapacitance

    19.5 pF

Data set 02

1961 Associated Electrical Industries

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Maximum operating frequency

    25 MHz

  • Main air flow

    500 ft3/min

  • Seal air flow

    15 ft3/min