ESA1002

Forced-air-cooled thoriated-tungsten transmitting triode for high-power RF service to about 40 MHz. Rated around 12 kW plate dissipation, it supports published RF output in the tens-of-kilowatts range.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 8 V / 124 A

Description

Directly heated thoriated-tungsten forced-air-cooled triode rated for 10 kV anode voltage, 12 kW anode dissipation, and operation at full rating to 40 Mc/s.

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: 8 V
Nominal heater current: 124 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: 800 Ω
Transconductance: 0.035 S
Amplification factor: 28
Max plate voltage: 10000 V
Max plate dissipation: 12000 W
Max grid dissipation: 800 W
Max cathode current: 33 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

MaximumOperatingFrequencyFullRating
40 MHz
MaximumRFPowerOutput
35 kW
MinimumCoolingAirflow
400 ft3/min
ForcedAir

Characteristics

Anode Grid Capacitance
40 pF
AnodeFilamentCapacitance
1.3 pF
GridFilamentCapacitance
56 pF

Data set 02

1961 Associated Electrical Industries

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Maximum operating frequency
40 MHz