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Power - Tetrode (NOT beam) ·Tetrode

4PR60A

High-vacuum pulse tetrode rated around 20 kV plate voltage and 18 A peak current, capable of approximately 300 kW pulse output for modulator service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
26 V / 2.25 A

Description

The EIMAC 4PR60A is a pulse tetrode for pulse-modulator service.

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
26 V
Nominal heater current
2.25 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

Tetrode

X-ray radiationInterelectrode capacitances
Max plate voltage
20000 V
Max screen voltage
1500 V
Max plate dissipation
60 W
Max screen dissipation
8 W
Max grid dissipation
1 W
Max cathode current
18 A

Promoted from printed maximum-rating and general-characteristics 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

1962 Eimac

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Capacitance

  • Grid-Plate (without shielding) - - - - - - - 0.3 puuf

    0.3 pF

  • Output - - -« -« « -« - - - - - =« - - - 9.0 puuf

    9 pF

Other

  • Maximum plate voltage

    20000 V

  • Maximum screen voltage

    1500 V

  • Maximum plate dissipation

    60 W

  • Maximum screen dissipation

    8 W

Data set 02

1965 Eimac Tube Manual

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Characteristic

  • Heater Voltage

    26 V

  • Heater Current

    2.25 A

  • Minimum Heating Time

    180 s

  • Pulse Output Power

    300 kW

Other

  • Maximum DC Plate Voltage

    20000 V

  • Maximum Peak Positive Plate Voltage

    25000 V

  • Maximum DC Screen Voltage

    1500 V

  • Maximum Peak Plate Current

    18 A

  • Maximum Average Plate Dissipation

    60 W

  • Maximum Average Screen Dissipation

    8 W

  • Maximum Average Grid Dissipation

    1 W