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Power - Beam (NOT sweep) (over 1000V 100W) ·Tetrode

PL5D22

Power tetrode with 250-watt plate dissipation designed for amplifier, oscillator, and modulator service in transmitting equipment.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
GIANT5
Base pins
5
Nominal heater
5 V / 14.5 A

Description

The Penta PL5D22 is a power tetrode with 250 w plate dissipation for amplifier, oscillator, and modulator service.

Socket description

Giant 5-contact base

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
GIANT5
Base pins
5
Nominal heater voltage
5 V
Nominal heater current
14.5 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
Transconductance
0.004 S
Amplification factor
5.1
Max plate voltage
4000 V
Max screen voltage
600 V
Max plate dissipation
250 W
Max grid dissipation
10 W

Highest reliable published rating promoted; additional values and operating/application details retained as parameter rows.

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

1965 Penta Labs Power Tubes

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Characteristic

  • Heater/filament voltage

    5 V

  • Heater/filament current

    14.5 A

  • Amplification factor

    5.1

  • Transconductance

    4000 uS

Other

  • Maximum plate voltage

    4000 V

  • Maximum screen voltage

    600 V

  • Maximum plate dissipation

    250 W

  • Maximum control-grid dissipation

    10 W

  • Source language

    English

  • Maximum frequency for full ratings

    75 MHz

  • Plate-modulated maximum plate voltage

    3200 V

Capacitance

  • Grid-plate capacitance

    0.12 pF

  • Input capacitance

    12.7 pF

  • Output capacitance

    4.5 pF

Application

  • Primary application

    Power tetrode with 250 W plate dissipation for amplifier, oscillator, and modulator service.

Construction

  • Cooling

    Radiation/convection or source-specific

  • Electrode structure

    Tetrode