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Power - Pentode (NOT beam) (over 1000V 100W) ·Pentode

5500A

Eimac high-power pentode for RF and linear-amplifier service, rated for approximately 500 W plate dissipation and 4 kV plate voltage.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
10 V / 10.2 A

Description

The EIMAC 5500A is a power pentode for rf and linear-amplifier 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
10 V
Nominal heater current
10.2 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

Pentode

X-ray radiationInterelectrode capacitances
Max plate voltage
4000 V
Max screen voltage
600 V
Max plate dissipation
500 W
Max screen dissipation
35 W
Max grid dissipation
12 W

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

Pentode

Capacitance

  • Grid-Plate - - - - - - - - . - . — .10 pf

    10 pF

  • Output - - - - - - - - - - - - 9.5 12.0 pf

    12 pF

Other

  • Maximum plate voltage

    4000 V

  • Maximum screen voltage

    600 V

  • Maximum plate dissipation

    500 W

  • Maximum screen dissipation

    35 W

  • Maximum grid dissipation

    12 W