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Rectifier - Damper Diode ·Rectifier

EY81F

Special-quality EY81-family television damper diode intended for reliable horizontal line-output energy recovery, retaining high inverse-voltage capability for demanding professional service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
B9A
Base pins
-
Nominal heater
6.3 V / 900 mA

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
-
Socket code
B9A
Base pins
-
Nominal heater voltage
6.3 V
Nominal heater current
900 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
5000 V

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

1968 Mazda Belvu

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • ‘Tension filament ...…..…..…..….ccreassereseemencanmennnenennennnsance Vvf

    6.3 V

  • Capacité filament/ cathode “

    2.5 pF

  • Tension d'anode à courant nul Vabl

    550 V

  • Tension d'alimentation d'anode Van

    250 V

  • Dissipation d'AnOd@ .………sseresemenmennensnnnnnnnennnn Pa

    3.5 W

  • Courant d'AnOd©E ..…..…...…..…errierererrenerenresensréneesseerennaccnsce Ia

    150 mA

  • Tension inverse de crête d'anode (1) ……s Va icr

    5000 V

  • dans le système des limites absolues …… …… Va icr

    5600 V

  • Tension de crête entre filament et cathode … … Vfker

    5000 V

Characteristic

  • nsnsensan

    900 mA

  • oivesssrcces

    6.4 pF