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PC0515

Directly heated transmitting pentode designed for RF power-amplifier service. Philips industrial documentation identifies it as a professional radio-frequency output tube.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 4 V / 1.1 A

Description

Directly heated transmitting pentode for RF power-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: 4 V
Nominal heater current: 1.1 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

Transconductance: 0.00125 S
Amplification factor: 3.5
Max plate voltage: 500 V
Max screen voltage: 300 V
Max plate dissipation: 15 W
Max screen dissipation: 5 W
Max cathode current: 85 mA

Promoted where the locked schema directly matches published RF values; frequency/service-specific limits and operating conditions are 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

1963 Philips Electron Tubes Handbook V4

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

Maximum plate voltage
500 V
RFPowerTube
Maximum screen voltage
300 V
RFPowerTube
Application
Directly heated transmitting pentode for RF power-amplifier service.
SourceDescription
Service category
RF/AF power service as specified in source
RFPowerTube
Heater/filament voltage
4 V
RFPowerTube
Heater/filament current
1.1 A
RFPowerTube

Construction

Heating method
Direct
RFPowerTube
Device class
Pentode
RFPowerTube

Characteristic

Screen-to-control-grid amplification factor
3.5
RFPowerTube

Capacitance

Plate capacitance
10 pF
RFPowerTube
Control-grid capacitance
11.5 pF
RFPowerTube

Data set 02

1999 Philips E-Z

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

Maximum plate voltage
500 V
Maximum screen voltage
300 V
Maximum plate dissipation
15 W
Maximum screen dissipation
5 W
Maximum cathode current
85 mA
Maximum peak cathode current
340 mA
Operating plate voltage
500 V
ClassC;Telegraphy
Operating screen voltage
300 V
ClassC;Telegraphy
Operating plate current
40 mA
ClassC;Telegraphy
RF output power
20 W
ClassC;Telegraphy
Efficiency
66 %
ClassC;Telegraphy

Characteristics

Transconductance
1250 uS
Screen-grid amplification factor
3.5

Capacitance

Plate-cathode capacitance
10 pF
Grid-cathode capacitance
11.5 pF
Plate-grid capacitance
0.2 pF