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Power - Triode ·Triode

ACT22

Forced-air-cooled disc-seal transmitting triode for UHF amplifier and oscillator service in coaxial-line circuits, including pulse operation.

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

Description

The ACT22 is a forced-air-cooled disc-seal transmitting triode for UHF amplifier and oscillator service in coaxial-line circuits, including pulse operation.

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
4 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
0.02 S
Amplification factor
22
Max plate voltage
600 V
Max plate dissipation
75 W

Published maximum ratings and characteristics audited; remaining useful numerical data retained in TUBE_SECTION_PARAMETER. Marconi ACT22 forced-air-cooled disc-seal transmitting triode for UHF amplifier/oscillator operation to approximately 1000 MHz, also pulse service. Approximate amplification factor 22. Anode and grid-seal forced-air cooling must operate before supply voltages are applied and continue until voltages have been removed.

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

1955 Marconi

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Published value

    1000 MHz

    1,000 Mc/s, and also for pulse operation. imposing strain on the glass work or on the cemented

  • The grid sea.l also requires to be cooled by air fmd the Va max,

    600

    The grid sea.l also requires to be cooled by air fmd the Va max,600 V| gn (takenathlxpx) S0mA/V

  • a pressure equal to a

    1

    a pressure equal to a 1-in. head of water. All cooling & (max) a-gl P

  • any supply voltages, and must continue until after all Igt maxy [1]

    60 V

    any supply voltages, and must continue until after all Igt maxy 60 mA | Caox 13-5 pF

  • any supply voltages, and must continue until after all Igt maxy [2]

    13 V

    any supply voltages, and must continue until after all Igt maxy 60 mA | Caox 13-5 pF

  • any supply voltages, and must continue until after all Igt maxy [3]

    -5 V

    any supply voltages, and must continue until after all Igt maxy 60 mA | Caox 13-5 pF

  • voltages have been removed. u

    22 V

    voltages have been removed. u 22

  • PERFORMANCE OF ACT

    22

    PERFORMANCE OF ACT 22 AS COMMON-GRID AMPLIFIER