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Rectifier - Damper Diode ·Rectifier

EY88

High-current television booster diode for horizontal line-time-base circuits, designed for substantial recovery current and high repetitive inverse voltage.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
9CB
Socket code
B9A
Base pins
9
Nominal heater
6.3 V / 1.55 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

Small-button Noval 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
9CB
Socket code
B9A
Base pins
9
Nominal heater voltage
6.3 V
Nominal heater current
1.55 A
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

9CB - Terminal pinout

Electrical assignments shared by every tube using this base designation.

TerminalSectionConnectionEvidence
PIN1IC—IC

Source transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9CB

PIN2IC—IC

Source transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9CB

PIN3IC—IC

Source transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9CB

PIN4H—H — Heater

Source transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9CB

PIN5H—H — Heater

Source transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9CB

PIN6IC—IC

Source transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9CB

PIN7IC—IC

Source transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9CB

PIN8IC—IC

Source transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9CB

PIN9PAP — Plate (Anode)

Source transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9CB

CAP1KAK — Cathode

Source transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9CB

Section ratings

1 physical section, each with unique specifications.

Section 1

Rectifier

X-ray radiationInterelectrode capacitances
Max plate voltage
250 V
Max plate dissipation
5 W
Rectifier peak inverse voltage
7500 V
Rectifier nominal output current
220 mA
Rectifier peak forward current
550 mA
Rectifier max heater-cathode voltage
6600 V

Published section ratings and characteristics promoted 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

195X Tesla

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Characteristics

  • Heater voltage

    6.3 V

    Published nominal value

  • Heater current

    300 mA

    Published nominal value

Data set 02

1963 Amperex Condensed

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • Peak inverse voltage maximum

    7500 V

    DamperDiode

  • Peak anode current maximum

    55 mA

    DamperDiode

  • Average anode current maximum

    22 mA

    DamperDiode

  • Application

    Booster/damper diode in television horizontal circuits

    Section1

Data set 03

1963 Philips Electron Tubes Handbook V1a

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Capacitance

  • Anode capacitance

    8.6 pF

  • Cathode-to-heater capacitance

    2 pF

Other

  • Maximum booster voltage

    550 V

  • Maximum DC anode current

    220 mA

  • Maximum peak anode current

    550 mA

  • Maximum cathode-positive anode-cathode pulse voltage

    6000 V

    Pulse

  • Maximum heater-cathode pulse voltage

    6600 V

    Pulse

Data set 04

1968 Mazda Belvu

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Characteristic

  • e ce mnene vf

    6.3 V

  • Capacité d@ SOItή ...……vrreeeceerersenancenencenmennnestsnntsnnsnns Cs

    8.6 pF

Other

  • Courant filament

    1.55 A

  • Capacité filament/ Cathod@ ……….…….…eerrenenesesenennnn cf/k

    2 pF

  • Tension d'anode à COUrANnt NUÏ -—…….….…rereraenencensascencennene Va bl

    550 V

  • Tension continue d'anode _

    250 V

  • Courant d'AnOd@E........…sccesssieriorenesmessennererennanceenserrrrsacs0ananese

    220 mA

  • Courant d'anode de CrêtE …..…...….….…..…reesssarenseencensesceneus

    550 mA

  • Puissance dissipée sur l'AnodeE .…s Pa

    5 W

  • Tension inversé de crête d'anode (1)..……mssereneserncee Va icr

    6 kV

  • Tension de crête entre filament et cathode (1) …… Vfker

    6.6 kV

Data set 05

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

    1.55 A

    Published nominal value

Data set 06

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Characteristic

  • Transconductance

    2300

    Published value from supplied target entry

  • Load Resistance

    10000 ohms

    Published value from supplied target entry

  • Total Harmonic Distortion

    10

    Published value from supplied target entry

  • Peak Plate Current

    550 mA

    Published value from supplied target entry

  • Average Plate Current

    220 mA

    Published value from supplied target entry

  • Peak Heater-Cathode Voltage

    6600 volts

    Published value from supplied target entry

  • Heater Voltage (ac/dc)

    12.6 volts

    Published value from supplied target entry

  • Peak Inverse Plate Voltage

    330 volts

    Published value from supplied target entry

  • Peak Plate Current (Per Plate)

    54 mA

    Published value from supplied target entry

  • AC Plate Voltage per Plate (rms)

    117 volts

    Published value from supplied target entry

  • Min. Total Effective Plate-Supply Impedance per Plate

    300 ohms

    Published value from supplied target entry

  • Average Output Current per Plate

    9 mA

    Published value from supplied target entry

  • Heater Current

    0.45 ampere

    Published value from supplied target entry

  • Heater Warm-up Time (Average)

    11 seconds

    Published value from supplied target entry

Other

  • Max.-Sig. Power Output

    1.1 watts

    Published value from supplied target entry

  • Peak Inverse Plate Voltage* (Absolute maximum)

    7600

    Published value from supplied target entry

  • Peak Heater-Cathode Voltage ±

    30 volts

    Published value from supplied target entry

Data set 07

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 N 6.3 V

  • Published electrical datum

    1.55 A

    Heater current If 1.55 A

Other

  • Heater voltage

    6.3 V

    Nominal heater rating

  • Heater current

    1.55 A

    Nominal heater rating