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Voltage - Triode (single high frequency) ·Triode

2ER5

High-mu miniature RF triode for grounded-grid VHF amplifier service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
B7G
Base pins
7
Nominal heater
2.3 V / 600 mA

Description

High-mu RF triode for grounded-grid VHF amplifier service.

Socket description

Miniature 7-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B7G
Base pins
7
Nominal heater voltage
2.3 V
Nominal heater current
600 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

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
8000 Ω
Transconductance
0.0105 S
Amplification factor
80
Max plate voltage
350 V
Max plate dissipation
2.2 W

Electrical characteristics of 6ER5 except heater.

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

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Triode

Capacitance

  • Plate To Grid Capacitance

    0.38 pF

    WithoutShield

  • Plate To Grid Capacitance

    0.36 pF

    WithShield

Other

  • PlateVoltageWithoutCurrentMaximum

    350 V

  • Plate Voltage

    200 V

Characteristic

  • Plate Current

    10 mA

Data set 02

1963 Amperex Condensed

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Plate voltage

    200 V

    VHF tuner

  • Grid voltage

    -1.2 V

    VHF tuner

  • Plate current

    10 mA

    VHF tuner

Characteristic

  • Amplification factor

    80

  • Transconductance

    10500 uS

Data set 03

1966 Tung Sol Electronic Tubes 1 of 4

Published operating points and test conditions from this source.

SECTION 1

Triode

Capacitance

  • PLATE TO GRID

    0.36 ΜΜF

    Capacitances | PLATE TO GRID 0.38 0.36 µµf

  • PLATE TO ALL OTHER ELECTRODES EXCEPT GRID

    4 ΜΜF

    Capacitances | PLATE TO ALL OTHER ELECTRODES EXCEPT GRID 3.0 4.0 µµf

  • GRID TO HEATER (MAX.)

    0.28 ΜΜF

    Capacitances | GRID TO HEATER (MAX.) 0.28 0.28 µµf

  • CATHODE TO HEATER

    2.8 pF

    Capacitances | CATHODE TO HEATER 2.g 2.8 uuf

Other

  • HEATER VOLTAGE

    2.3 V

    Maximum Ratings | HEATER VOLTAGE 2.3 VOLTS

  • HEATER VOLTAGE

    2.3 V

    Typical Operating Conditions | HEATER VOLTAGE 2.3 2.3 VOLTS

  • HEATER CURRENT

    600 mA

    Typical Operating Conditions | HEATER CURRENT 0.60 0.60 AMP.

  • GRID VOLTAGE —

    5.6 V

    Typical Operating Conditions | GRID VOLTAGE —1.2 —3.8 —5.6 VOLTS

Data set 04

1971 RCA HB3 Binder 4 of 7

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Heater voltage

    2.3 V

  • Heater current

    600 mA

  • Plate voltage

    200 V

    ClassA

  • Grid voltage

    -1.2 V

    ClassA

  • Plate current

    10 mA

    ClassA

Characteristic

  • Transconductance

    10500 uS

    ClassA

  • Amplification factor

    80

    ClassA

  • Plate resistance

    8000 ohm

    ClassA

  • Grid voltage for transconductance 5000 uS

    -3.8 V

  • Grid voltage for transconductance 1000 uS

    -5.6 V