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Rectifier - Half Wave ·Rectifier

1D5

Indirectly heated half-wave rectifier for universal-receiver power supplies. Its four-volt heater and moderate output capability suit compact mains-operated radio equipment.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
IO
Base pins
-
Nominal heater
4 V / 200 mA

Description

Indirectly heated rectifier for universal-receiver power-supply service.

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
4 V
Nominal heater current
200 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
700 V
Rectifier nominal output current
100 mA
Rectifier max heater-cathode voltage
350 V

Published ratings and characteristics promoted semantically from source; repeated identical physical sections compressed where applicable.

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

Application

  • Service

    Universal-receiver rectifier

Data set 02

1958 Brimar Radio Valve No 7

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • RMS Input

    250 V

  • Series Anode Limiting Resistor

    50 ohm

  • Peak Inverse Voltage

    700 V

  • Rectified Current

    100 mA

  • Heater-Cathode Potential

    350 V

  • Reservoir Capacitor

    16 uF