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Rectifier - Half Wave ·Rectifier

PY31

Indirectly heated half-wave rectifier for AC/DC power supplies. Rated for approximately 1 kV peak inverse voltage and 125 mA nominal rectified output from a 17 V series heater.

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

Description

Indirectly heated half-wave rectifier for DC/AC operation.

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
17 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 peak inverse voltage
1000 V
Rectifier nominal output current
125 mA
Rectifier max heater-cathode voltage
300 V

Published valve ratings and characteristics promoted where applicable; additional data 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

1951 Mullard Valve and Service Manual

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Characteristic

  • HeaterOrFilamentVoltage

    17 V

  • HeaterOrFilamentCurrent

    300 mA

Other

  • Peak Inverse Voltage

    1000 V

  • DC Output Current

    125 mA

Data set 02

1958 Mullard Receiving Tubes

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Application

  • Application

    Half-wave rectifier

Data set 03

1963 Mullard

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • Operating point

    250 V RMS; 60 uF; 175 ohm min

    CapacitorInputFilter

  • Operating point

    250 V RMS; 32 uF; 125 ohm min

    CapacitorInputFilter

  • Operating point

    250 V RMS; 16 uF; 75 ohm min

    CapacitorInputFilter

  • Operating point

    170 V RMS; 60 uF; 100 ohm min

    CapacitorInputFilter

  • RMS input voltage maximum

    250 V

    CapacitorInputFilter

  • Reservoir capacitance maximum

    60 uF

    CapacitorInputFilter