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PL254W

Penta radiation-cooled power triode for RF amplification, frequency multiplication, oscillation, and audio power service. High plate-voltage capability and moderate amplification factor provide versatile transmitter and modulator performance.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: J4
Base pins: -
Nominal heater: -

Description

The Penta PL254W is a 100 w radiation-cooled power triode for rf amplifier, multiplier, oscillator, and audio power service.

Socket description

Jumbo 4-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: J4
Base pins: -
Nominal heater voltage: -
Nominal heater current: -
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

Transconductance: 0.002 S
Amplification factor: 25
Max plate voltage: 4000 V
Max plate dissipation: 100 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

Triode

Characteristic

Amplification factor
25
Transconductance
2000 uS
Amplification factor
25

Other

Maximum plate voltage
4000 V
Maximum plate dissipation
100 W
Source language
English
Maximum RF output
400 W

Application

Primary application
100 W radiation-cooled power triode for RF amplifier, multiplier, oscillator, and audio power service.

Construction

Cooling
Radiation/convection or source-specific
Electrode structure
Triode