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Rectifier - Full Wave ·Rectifier-Rectifier

EZ11

Indirectly heated full-wave rectifier designed primarily for automobile-radio power supplies. Its 6.3 V heater construction supports approximately 60 mA DC output in documented receiver operating conditions.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
-
Socket code
Y8A
Base pins
-
Nominal heater
6.3 V / 290 mA

Description

Indirectly heated full-wave rectifier for automobile receivers, rated for about 60 mA DC output.

Socket description

Steel-tube 8-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
Y8A
Base pins
-
Nominal heater voltage
6.3 V
Nominal heater current
290 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

2 physical sections, each with unique specifications.

Section 1

Rectifier

X-ray radiationInterelectrode capacitances
Rectifier peak inverse voltage
500 V
Rectifier nominal output current
60 mA
Rectifier peak forward current
360 mA
Rectifier max heater-cathode voltage
350 V

Representative promoted row for repeated identical sections.

Section 2

Rectifier

X-ray radiationInterelectrode capacitances
Rectifier peak inverse voltage
500 V
Rectifier nominal output current
60 mA
Rectifier peak forward current
360 mA
Rectifier max heater-cathode voltage
350 V

Physical rectifier section 2; identical section values duplicated per physical-section policy.

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

1953 RFT Rundfunk Technik

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • Transformer voltage maximum

    2x250 V

    FullWave

  • DC output current maximum

    60 mA

Data set 02

1959 Telefunken

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • RMS transformer voltage per plate

    250 V

    2x250V

  • DC output current maximum

    60 mA

  • Heater-to-cathode voltage maximum

    350 V

  • Minimum transformer internal resistance per anode

    600 Ohm

  • Reservoir capacitance maximum

    32 uF

  • Reservoir capacitance

    16 uF

    Curves