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

2054

Power triode intended for power-amplifier service, with manufacturer operating data centered on useful output power and comparatively heavy plate operation. Documentation supports treatment as a power device rather than a small-signal voltage amplifier.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
IO
Base pins
8
Nominal heater
4 V / 7 A

Description

Water-cooled super-power ceramic-metal triode for long-pulse RF power amplification through the UHF region.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
IO
Base pins
8
Nominal heater voltage
4 V
Nominal heater current
7 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
Max plate voltage
34000 V
Max plate dissipation
300000 W
Max grid dissipation
200000 W
Max cathode current
1000 A

Water-cooled super-power triode; long-pulse UHF service.

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

1971 RCA HB3 Binder 6 of 7

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Heater/filament voltage

    4 V

  • Heater/filament current

    7000 A

  • Filament current typical minimum

    6800 A

  • Filament current typical maximum

    7200 A

  • Filament voltage typical minimum

    3.6 V

  • Filament voltage typical maximum

    4.5 V

  • Minimum warm-up before plate voltage

    60 s

  • Peak positive-pulse plate voltage

    34 kV

    LongPulse

  • Average plate dissipation

    300 kW

    LongPulse

  • Useful peak RF output

    5 MW

    440MHz

  • Operating frequency

    440 MHz

    LongPulseRF

Capacitance

  • Grid-to-plate capacitance

    150 pF

  • Grid-to-cathode capacitance

    1600 pF

  • Plate-to-cathode capacitance

    1 pF

    LessThan

Construction

  • Cooling method

    Water cooled