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Rectifier - Half Wave ·Rectifier

UY89

Indirectly heated half-wave rectifier for radio receivers operating from 110–250 V mains. Its 31 V series-string heater provides moderate receiver supply current.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
Noval
Socket code
B9A
Base pins
-
Nominal heater
31 V / 100 mA

Description

Indirectly heated half-wave rectifier for 110–250 V mains receivers.

Socket description

Small-button Noval 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
Noval
Socket code
B9A
Base pins
-
Nominal heater voltage
31 V
Nominal heater current
100 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

Noval - 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 peak forward current
600 mA
Rectifier max heater-cathode voltage
550 V

Published maximum ratings and typical characteristics promoted from the 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

1958 Mullard Receiving Tubes

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Application

  • Application

    Half-wave mains rectifier

Data set 02

1963 Philips Electron Tubes Handbook V1

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • Maximum peak inverse voltage

    700 V

    HalfWave

  • Maximum DC output current

    100 mA

    HalfWave

  • Maximum peak cathode/anode current

    600 mA

    HalfWave

  • Maximum heater-cathode voltage

    550 V

    CathodePositive

  • Maximum filter capacitance

    50 uF

    CapacitorInputFilter

  • AC input voltage

    110 V RMS

    HalfWave

  • Minimum series resistance

    0 ohm

    HalfWave; ACInput=110V

  • DC output voltage

    113 V

    HalfWave; ACInput=110V

  • AC input voltage

    127 V RMS

    HalfWave

  • Minimum series resistance

    0 ohm

    HalfWave; ACInput=127V

  • DC output voltage

    135 V

    HalfWave; ACInput=127V

  • AC input voltage

    220 V RMS

    HalfWave

  • Minimum series resistance

    160 ohm

    HalfWave; ACInput=220V

  • DC output voltage

    188 V

    HalfWave; ACInput=220V

  • AC input voltage

    250 V RMS

    HalfWave

  • Minimum series resistance

    210 ohm

    HalfWave; ACInput=250V

  • DC output voltage

    205 V

    HalfWave; ACInput=250V

Data set 03

1972 Philips Receiving Tubes

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • HeaterVoltageNominal

    31 V

    Nominal

  • HeaterCurrentNominal

    100 mA

    Nominal

  • Maximum Peak Inverse Voltage

    700 V

  • Rectified Output Current

    100 mA

  • PeakForwardCurrent

    600 mA

  • TransformerVoltageRMS

    250 V

    Single-phase half-wave rectifier

Data set 04

1999 Philips E-Z

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Characteristic

  • Transformer voltage Vir

    250 V

    Transformer voltage Vir 250 V

  • D.C. current Io

    100 mA

    D.C. current Io 100 mA

  • Heater current I¢

    100 mA

    Heater current I¢ 100 mA

  • Heater voltage Vg

    31

    Heater voltage Vg 31 Vv

  • Transformer voltage Vir

    110

    Transformer voltage Vir 250 220 127 110 VRMS

  • D.C. output voltage vy

    113 V

    D.C. output voltage vy 205 188 135 113 V

  • D.C. current I

    100 mA

    D.C. current I 100 100 100 100 mA

  • Protecting resistance Re

    0

    Protecting resistance Re 210 160 0 0 @

  • Input capacitor of smoothing filter Ctilt

    50

    Input capacitor of smoothing filter Ctilt 50 50 50 50 wF

  • Protecting resistance Ry min,

    0 Q

    Protecting resistance Ry min, 210 160 0 0 Q

  • at transformer voltage Vir

    110

    at transformer voltage Vir 250 220 127 110 VRMS

Other

  • Anode voltage, peak inverse va'mvp max

    700

    Anode voltage, peak inverse va'mvp max. 700 \'

  • D.C. current I, max.,

    100 mA

    D.C. current I, max., 100 mA

  • Anode current, peak Iap max

    600 mA

    Anode current, peak Iap max. 600 mA