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Power - Triode ·Triode

7C25

Central Electronics power/pulse triode with published high-power operating and cooling data for pulse and power service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
11 V / 28 A

Description

7C25: Central Electronic Manufacturers power/pulse triode with published electrical ratings and operating data. The complete approved datasheet was read semantically, including specifications, maximum ratings, operating conditions, cooling requirements and characteristic data where published.

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
11 V
Nominal heater current
28 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
Amplification factor
25
Max plate voltage
5000 V
Max plate dissipation
2500 W
Max cathode current
1.3 A

Published ratings and characteristics promoted where applicable; remaining useful published values retained as parameters.

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

195X Central Electronics

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

  • Filament voltage

    11 V

  • Filament current

    28 A

  • Amplification factor

    25

  • Filament starting current

    56 A

  • Filament cold resistance

    0.047 ohm

Other

  • Peak cathode current

    10 A

Data set 02

1960 Central Electronic Tubes

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Amplification factor

    25

  • Heater/filament voltage

    11 V

  • Heater/filament current

    28 A

Other

  • Maximum plate/anode voltage

    5000 V

  • Maximum plate/anode dissipation

    2500 W

  • Peak cathode current

    10 A

  • Maximum DC plate current

    1.3 A

  • Typical RF plate voltage

    5000 V