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Voltage Pentode ·Pentode

EFP60

Secondary-emission pentode for stable wideband amplification, high-speed computer circuits, and high-quality television pulse and signal processing.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
B9G
Base pins
9
Nominal heater
6.3 V / 300 mA

Description

Secondary-emission pentode for stable wide-band amplification, high-speed computer service, and high-quality television applications.

Socket description

Loctal 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B9G
Base pins
9
Nominal heater voltage
6.3 V
Nominal heater current
300 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

Pentode

X-ray radiationInterelectrode capacitances
Plate resistance
70000 Ω
Transconductance
0.01 S
Max plate voltage
300 V
Max screen voltage
300 V
Max plate dissipation
3 W
Max screen dissipation
0.4 W

Published ratings/characteristics promoted from the approved 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 La Radiotechnique

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • HeaterVoltageNominal

    6.3 V

    Nominal

  • HeaterCurrentNominal

    300 mA

    Nominal

  • Maximum Plate Voltage

    300 V

  • Maximum Screen Voltage

    300 V

  • Maximum Plate Dissipation

    3 W

Characteristic

  • Transconductance

    10000 µS

    Typical

Data set 02

1958 Amperex Industrial

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • Maximum plate dissipation

    2 W

  • Maximum plate voltage

    300 V

  • Maximum plate current

    20 mA

Characteristic

  • Transconductance

    25000 µS

  • Grid-to-plate capacitance

    0.004 pF

  • Input capacitance

    9.2 pF

  • Output capacitance

    6 pF

Data set 03

1963 Amperex Condensed

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • Maximum frequency

    1000 MHz

    WideBandAmplifier

  • Application

    Secondary-emission pentode for wide-band amplifier service

    Section1

  • Application

    High-speed computer and high-quality television equipment

    Section1

Capacitance

  • Grid-to-plate capacitance

    0.004 pF

    Section1

  • Input capacitance

    9.2 pF

    Section1

  • Output capacitance

    6 pF

    Section1

Data set 04

1963 Philips Electron Tubes Handbook V1a

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristic

  • Heater voltage

    6.3 V

    Published heater rating

  • Heater current

    300 mA

    Published heater rating

  • Transconductance

    25000 µS

    SecondaryEmission

Other

  • Plate voltage

    250 V

    SecondaryEmission

  • Secondary-emission cathode voltage

    150 V

    SecondaryEmission

  • Screen voltage

    250 V

    SecondaryEmission

  • Grid bias

    -2 V

    SecondaryEmission

  • Plate current

    20 mA

    SecondaryEmission

  • Secondary-emission current

    -15.6 mA

    SecondaryEmission

  • Screen current

    1.5 mA

    SecondaryEmission

  • Maximum plate voltage

    300 V

    Published limit

  • Maximum plate dissipation

    2 W

    Published limit

  • Maximum screen voltage

    300 V

    Published limit

Data set 05

1999 Philips E-Z

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • Heater voltage

    6.3 V

    Heating

  • Heater current

    300 mA

    Heating

  • Maximum plate voltage

    300 V

    Promoted published datasheet value

  • Maximum screen voltage

    300 V

    Promoted published datasheet value

  • Maximum plate dissipation

    2 W

    Promoted published datasheet value

  • Maximum screen dissipation

    0.4 W

    Promoted published datasheet value

  • Vao = max

    550 V

    Limiting values

  • Va = max

    300 V

    Limiting values

Characteristic

  • Plate resistance

    70000 Ω

    Promoted published datasheet value

  • Transconductance

    25000 µS

    Promoted published datasheet value

  • Kapazititen Cgl =

    9.2 pF

    Published datasheet value

  • Va =

    25 V

    Published datasheet value

  • Vk3 =

    150 V

    Published datasheet value

  • Vg2 =

    250 V

    Published datasheet value

  • Vgl =

    -2 V

    Published datasheet value

  • Ia =

    20 mA

    Published datasheet value

  • Ik3 =

    -15.6 mA

    Published datasheet value

  • Ig2 =

    1.5 mA

    Published datasheet value

  • S =

    25 mA/V

    Published datasheet value

  • Ri =

    70 kΩ

    Published datasheet value

  • ITk3 = =

    15.6 mA

    Published datasheet value

  • Ipt =

    3.5 mA

    Published datasheet value

  • Ip2 =

    1 mA

    Published datasheet value

  • I’Got =

    26 mA

    Published datasheet value