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Power - Pentode (NOT beam) ·Pentode-Triode

ECL11

Combination valve incorporating a power-output pentode with diode or triode sections for audio-frequency amplification, detection, or driver service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
-
Socket code
-
Base pins
-
Nominal heater
6.3 V / 1 A

Description

Triode and output tetrode combination for audio amplification.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
-
Base pins
-
Nominal heater voltage
6.3 V
Nominal heater current
1 A
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

Triode

X-ray radiationInterelectrode capacitances
Transconductance
0.002 S
Amplification factor
66
Max plate voltage
300 V
Max plate dissipation
0.6 W
Max cathode current
15 mA

Published ratings and characteristics promoted from the approved German source.

Section 2

Pentode

X-ray radiationInterelectrode capacitances
Plate resistance
25000 Ω
Transconductance
0.009 S
Max plate voltage
250 V
Max screen voltage
275 V
Max plate dissipation
9 W
Max screen dissipation
1.3 W
Max cathode current
60 mA

Published ratings and characteristics promoted from the approved German 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

1953 RFT Rundfunk Technik

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • HeaterVoltageNominal

    6.3 V

    Nominal

  • HeaterCurrentNominal

    1 A

    Nominal

  • Maximum Plate Voltage

    300 V

  • Maximum Plate Dissipation

    1.5 W

  • Maximum Cathode Current

    15 mA

Characteristic

  • Amplification Factor

    20

    Typical

SECTION 2

Pentode

Other

  • HeaterVoltageNominal

    6.3 V

    Nominal

  • HeaterCurrentNominal

    1 A

    Nominal

  • Maximum Plate Voltage

    250 V

  • Maximum Screen Voltage

    275 V

  • Maximum Plate Dissipation

    8 W

  • Maximum Screen Dissipation

    1.3 W

  • Maximum Cathode Current

    60 mA

Characteristic

  • Transconductance

    9000 µS

    Typical

  • Plate Resistance

    25000 ohm

    Typical

Data set 02

1959 Telefunken

Published operating points and test conditions from this source.

SECTION 2

Pentode

Other

  • Audio power output

    4 W

Data set 03

1999 Philips E-Z

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Chauffage indir., CA ou CC, alimentation en Vf

    6.3 V

    Published datasheet value

Other

  • Va

    250 V

    Published datasheet value

  • Vg

    -2.5 V

    Published datasheet value

  • Ia

    2 mA

    Published datasheet value

  • ' S

    2 mA/V

    Published datasheet value

  • Vgl

    250 V

    Published datasheet value

  • Vgl

    -6 V

    Published datasheet value

  • I■

    36 mA

    Published datasheet value

  • Ig2

    4 mA

    Published datasheet value

  • S

    9 mA/V

    Published datasheet value

  • Wo

    3.8 W

    Published datasheet value

  • Vieff 4i

    2 V

    Published datasheet value

  • Vieff (Wo

    50 mW

    Published datasheet value

  • Vieff (Wo = 50 mW)

    0.4 V

    Published datasheet value

  • Vao max

    550 V

    Published datasheet value

  • Va max

    300 V

    Published datasheet value

  • We max

    0.3 W

    Published datasheet value

  • Vg (Ig = +

    0.3 µA

    Published datasheet value

  • Vg (Ig = +0,3 µA) max

    -1.3 V

    Published datasheet value

  • Vs max

    250 V

    Published datasheet value

  • We max

    9 W

    Published datasheet value

  • Vg2o max

    550 V

    Published datasheet value

  • Vg

    2 ma

    Published datasheet value

  • Vg2 max

    275 V

    Published datasheet value

  • Wg2 (Vi

    0 V

    Published datasheet value

  • Wg2 (Vi = 0 V) max

    1.2 W

    Published datasheet value

  • Vgl (Ig1 +0,3 FA) max

    -1.3 V

    Published datasheet value

  • Vfk max

    50 V

    Published datasheet value

  • der Röhre ECL 11 mehr als

    50 %

    Published datasheet value

  • rant cathodique du tube ECL 11 dolt etre plus de

    50 %

    Published datasheet value

  • Va= ‚

    250 V

    Published datasheet value

  • Published value

    20 v

    Published datasheet value

  • i~U IlIi11411R

    1 W

    Published datasheet value