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Rectifier - Half Wave ·Rectifier

2B25

Directly heated half-wave rectifier for high-voltage power supplies. Rated for approximately 2.5 kV peak inverse voltage, 100 mA DC output, and 500 mA peak-current capability.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
B7G
Base pins
-
Nominal heater
1.4 V / 110 mA

Description

Filament-type half-wave rectifier for high-voltage power-supply service.

Socket description

Miniature 7-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B7G
Base pins
-
Nominal heater voltage
1.4 V
Nominal heater current
110 mA
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

Rectifier

X-ray radiationInterelectrode capacitances
Rectifier peak inverse voltage
2500 V
Rectifier nominal output current
100 mA
Rectifier peak forward current
500 mA

Published maximum ratings and characteristics promoted from approved source.

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

1938 Raytheon

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • HeaterVoltageNominal

    1.4 V

    Nominal

  • HeaterCurrentNominal

    110 mA

    Nominal

  • Maximum Peak Inverse Voltage

    2500 V

  • Rectified Output Current

    100 mA

  • PeakForwardCurrent

    500 mA