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Rectifier - Damper Diode ·Rectifier

EY500A

High-current efficiency diode for television line-deflection energy recovery, combining approximately 5.6 kV inverse-voltage capability with 440 mA average and 800 mA peak current.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
9C18
Socket code
B9D
Base pins
9
Nominal heater
6.3 V / 2.1 A

Description

Efficiency diode for television line-deflection recovery circuits. Indirectly heated Mazda/Belvu receiving tube; descriptive text translated to English from the French source.

Socket description

Magnoval 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
9C18
Socket code
B9D
Base pins
9
Nominal heater voltage
6.3 V
Nominal heater current
2.1 A
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

9C18 - 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
Max cathode current
440 mA
Rectifier peak inverse voltage
5600 V
Rectifier nominal output current
440 mA
Rectifier peak forward current
800 mA
Rectifier max heater-cathode voltage
6300 V

Published ratings and characteristics promoted where clearly stated; identical repeated sections compressed when 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

1959 Telefunken

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • DC forward current maximum

    440 mA

  • Peak forward current maximum

    800 mA

  • Peak heater-to-cathode voltage

    5.6 kV

    Pulse

  • Heater-to-cathode voltage

    6.3 kV

  • Absolute heater-to-cathode voltage

    7 kV

Characteristics

  • Plate-to-cathode resistance at 440mA

    45.5 Ohm

Capacitance

  • Plate-to-cathode capacitance

    13.5 pF

  • Heater-to-cathode capacitance

    37 pF

Data set 02

1968 Mazda Belvu

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Characteristic

  • Tension filaAment ……….……ressesnenenenenMsennnnnnnn vf

    6.3 V

  • es nseneneenaennencene If

    2.1 A

  • Capacité anode/ cathode …… Ca/k

    13.5 pF

  • d'anode de

    440 mA

Other

  • Capacité cathode/filament ...s Ck/f

    3.7 pF

  • Tension de crête inverse d'anode … Vai cf

    5.6 kV

  • Courant d'anode ...s … Jla

    440 mA

  • Courant de crête d'anode …..…..….….….…….……rsrerenenenn Tact 1

    0 mA

  • Dissipation d'anode ….……..………. mansasrescenenccuse PA

    11 W

  • Tension de crête filament - cathode mescconeseu VfkCF

    6.3 kV

Data set 03

1972 Philips Receiving Tubes

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Characteristics

  • Heater voltage

    6.3 V

    Published nominal value

  • Heater current

    2.1 A

    Published nominal value

Data set 04

1999 Philips E-Z

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Characteristic

  • Published electrical datum

    6.3 V

    Heater voltage Ve 6.3 V

  • Published electrical datum

    2.1 A

    Heater current If 2.1 A

Other

  • Heater voltage

    6.3 V

    Nominal heater rating

  • Heater current

    2.1 A

    Nominal heater rating