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Rectifier - Half Wave ·Rectifier

25RE

Indirectly heated AC/DC rectifier for transformerless electronic supplies. Its 25 V heater construction supports approximately 250 V RMS input per anode and up to about 85 mA rectified output.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
IO
Base pins
-
Nominal heater
25 V / 300 mA

Description

A.C./D.C. rectifier with 250 V RMS input per anode and 85 mA maximum rectified current.

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
-
Nominal heater voltage
25 V
Nominal heater current
300 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 nominal output current
85 mA

Published ratings and characteristics promoted from the supplied Brimar source where explicitly available.

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

1948 Brimar Radio Valve Manual

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Characteristic

  • HeaterOrFilamentVoltage

    25 V

  • HeaterOrFilamentCurrent

    300 mA

Other

  • RMSInputPerAnode

    250 V