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Voltage Pentode - Sharp Cutoff (single) ·Pentode

5654

Sharp-cutoff pentode designed for RF, VHF/UHF, wide-band, or voltage-amplifier service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
E7-1
Socket code
B7G
Base pins
7
Nominal heater
6.3 V / 175 mA

Description

Ruggedized RF voltage pentode designed for severe mechanical service and repeated heater cycling.

Socket description

Miniature 7-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
E7-1
Socket code
B7G
Base pins
7
Nominal heater voltage
6.3 V
Nominal heater current
175 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

E7-1 - 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
340000 Ω
Transconductance
0.005 S
Amplification factor
32.5
Max plate voltage
200 V
Max screen voltage
155 V
Max plate dissipation
1.65 W
Max screen dissipation
0.55 W
Max cathode current
20 mA
Rectifier max heater-cathode voltage
135 V

Absolute maxima and Class-A characteristics promoted.

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

1940 RCA

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • HeaterVoltageNominal

    6.3 V

    Nominal

  • HeaterCurrentNominal

    175 mA

    Nominal

  • Maximum Plate Voltage

    200 V

  • Maximum Screen Voltage

    155 V

  • Maximum Plate Dissipation

    1.85 W

  • Maximum Cathode Current

    20 mA

Characteristic

  • Transconductance

    5100 µS

    Typical

  • Plate Resistance

    500000 ohm

    Typical

Data set 02

1957 Philips Receiving and Amplifying Tubes

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristics

  • Plate Voltage

    120 V

  • Screen Voltage

    120 V

Data set 03

1958 Compagnie General

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristic

  • Operating Frequency Maximum

    400 MHz

  • Plate Resistance

    500000 ohm

  • Transconductance

    5100 uS

Other

  • Plate Dissipation

    1.65 W

Data set 04

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • Heater voltage

    6.3 V

    Nominal

  • Heater current

    175 mA

    Nominal

  • Plate voltage

    180 V

    Published operating table; OperatingPoint1

  • Plate voltage

    120 V

    Published operating table; OperatingPoint1

  • Plate voltage

    200 V

    Published operating table; OperatingPoint1

  • Plate voltage

    120 V

    Published operating table; OperatingPoint1

  • Screen voltage

    40 V

    Published operating table; OperatingPoint1

  • Screen voltage

    120 V

    Published operating table; OperatingPoint1

  • Screen voltage

    155 V

    Published operating table; OperatingPoint1

Characteristic

  • Plate current

    7.5 mA

    Published operating table; OperatingPoint1

  • Plate current

    7.5 mA

    Published operating table; OperatingPoint1

Data set 05

1963 Amperex Condensed

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristic

  • Heater voltage

    6.3 V

    Published rating

  • Heater current

    175 mA

    Published rating

  • Transconductance

    5000 µS

    Published table

  • Published characteristic value

    340

    Published table

Other

  • Plate voltage

    120 V

    Published table

  • Screen voltage

    120 V

    Published table

  • Cathode resistor

    100 ohm

    Published table

  • Published current value

    2.5 mA

    Published table

Data set 06

1963 Philips Electron Tubes Handbook V1

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • Plate voltage

    120 V

    WideBandAmplifier

  • Screen voltage

    120 V

    WideBandAmplifier

  • Grid voltage

    -2 V

    WideBandAmplifier

  • Screen current

    2.5 mA

    WideBandAmplifier

Characteristic

  • Transconductance

    3800 to 6200 uS

  • Plate resistance

    0.34 MOhm

  • Grid cutoff voltage

    -8.5 V

    AtPlateCurrent=10uA

Capacitance

  • Grid-to-other-elements capacitance

    3.4 to 4.6 pF

    ExternalShield

  • Anode capacitance

    2.45 to 3.25 pF

    ExternalShield

  • Anode-to-grid capacitance

    - to 0.02 pF

    Maximum

  • Grid1-to-grid2 capacitance

    1.4 pF

Data set 07

1963 Philips Electron Tubes Handbook V3

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristic

  • Plate voltage

    120 V

    Section1

  • Screen voltage

    120 V

    Section1

  • Control-grid voltage

    -2 V

    Section1

  • Screen current

    2.5 mA

    Section1

  • Transconductance

    5000 µS

    Section1

  • Plate resistance

    340000 Ω

    Section1

  • Cutoff grid voltage

    -8.5 V

    Section1

  • Grid current maximum

    0.1 µA

    Section1

Capacitance

  • Plate capacitance

    2.85 pF

    Section1

  • Grid capacitance

    4 pF

    Section1

Data set 08

1963 Siemens

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • Heater voltage

    6.3 V

  • Heater current

    175 mA

Characteristics

  • Transconductance

    5000 µS

    Nominal/Bogey

  • Amplification factor

    32.5

    Nominal/Bogey

Data set 09

1966 Tung Sol Electronic Tubes 3 of 4

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • Heater voltage

    6.3 V

  • Heater current

    175 mA

  • Plate voltage

    120 V

    ClassA

  • Screen voltage

    120 V

    ClassA

  • Cathode bias resistor

    200 ohm

    ClassA

  • Plate current

    7.5 mA

    ClassA

  • Screen current

    2.5 mA

    ClassA

  • Maximum plate voltage

    200 V

  • Maximum screen voltage

    155 V

  • Maximum plate dissipation

    1.65 W

Data set 10

1968 General Electric Co

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • Plate Voltage

    120 V

    ClassA

  • Screen Voltage

    120 V

    ClassA

Characteristic

  • Plate Current

    7.5 mA

    ClassA

Data set 11

1968 Mazda Belvu

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristic

  • DesignFeature

    ShockAndVibrationResistant text

Data set 12

1971 RCA HB3 Binder 3 of 7

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • Maximum plate voltage

    - to 200 V

  • Maximum screen voltage

    - to 155 V

  • Maximum plate dissipation

    - to 1.85 W

  • Maximum screen dissipation

    - to 0.55 W

  • Maximum cathode current

    - to 20 mA

  • Plate voltage

    120 V

    ClassA

  • Plate voltage

    180 V

    ClassA

  • Grid No.2 voltage

    120 V

    ClassA

  • Cathode-bias resistor

    180 Ω

    ClassA

Characteristics

  • Plate resistance

    500000 Ω

  • Transconductance

    5100 µS

Data set 13

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Pentode

Capacitance

  • Grid-to-plate capacitance

    0.02 pF

    Max

  • Input capacitance

    4 pF

  • Output capacitance

    2.85 pF

Other

  • Plate voltage

    180 V

    ClassA

  • Screen-grid voltage

    120 V

    ClassA

  • Plate current

    7.7 mA

    ClassA

  • Screen-grid current

    2.4 mA

    ClassA

Data set 14

1999 Philips 0-D

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristics

  • Heater voltage

    6.3 V

  • Heater current

    175 mA

  • Plate voltage

    120 V

  • Screen voltage

    120 V

  • Plate current

    7.5 mA

  • Screen current

    2.5 mA

  • Transconductance

    5000 uS

  • Plate resistance

    340000 ohm

Capacitance

  • Input capacitance

    4 pF

  • Output capacitance

    2.85 pF