Skip to main content
Tube Tinker — Electron Tube Database
Alternatives & variationsDownload PDF datasheet

Power - Triode (over 1000V 100W) ·Triode

TY815A

Forced-air-cooled high-power RF triode for industrial Class C oscillator service. Approximately 15 kW plate dissipation and 8 kV capability support tens of kilowatts of industrial RF output.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
6.3 V / 130 A

Description

Forced-air cooled high-power RF triode for industrial class-C oscillator service, rated around 14–18 kW output at 30 MHz.

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
6.3 V
Nominal heater current
130 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

Triode

X-ray radiationInterelectrode capacitances
Transconductance
0.023 S
Amplification factor
17.5
Max plate voltage
8000 V
Max plate dissipation
15000 W
Max grid dissipation
800 W
Max cathode current
4 A

Promoted values are mapped from the supplied datasheet; additional published ratings, characteristics, capacitances and operating points are retained in TUBE_SECTION_PARAMETER.

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 Mullard

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Maximum frequency

    30 MHz

    FullRatings

  • Plate voltage

    7000 V

    ClassC;Oscillator;f=30MHz

  • Plate current

    3.5 A

    ClassC;Oscillator;f=30MHz

  • Grid current

    950 mA

    ClassC;Oscillator;f=30MHz

  • Plate dissipation

    6.8 kW

    ClassC;Oscillator;f=30MHz

  • Efficiency

    72 %

    ClassC;Oscillator;f=30MHz

  • RF output power

    17.7 kW

    ClassC;Oscillator;f=30MHz

Capacitance

  • Grid-to-plate capacitance

    33.5 pF

  • Grid-to-filament capacitance

    44.5 pF

  • Plate-to-filament capacitance

    1.2 pF

Characteristics

  • Transconductance

    23000 uS

    Va=6kV;Ia=2.5A

  • Transconductance

    28000 uS

    Va=500V;Ia=14A

  • Amplification factor

    17.5 ratio

    Va=6kV;Ia=2.5A