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Voltage Dual Pentode ·Pentode-Pentode

EFL200

Dual pentode designed for television video-frequency amplification and sync-separator service, integrating wideband video gain and pulse separation in one envelope.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
-
Socket code
B10B
Base pins
10
Nominal heater
6.3 V / 810 mA

Description

Dual pentode for television video-frequency amplification and sync-separator service.

Socket description

Decal 10-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B10B
Base pins
10
Nominal heater voltage
6.3 V
Nominal heater current
810 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

Pentode

X-ray radiationInterelectrode capacitances
Plate resistance
100000 Ω
Transconductance
0.018 S
Max plate voltage
250 V
Max screen voltage
250 V
Max plate dissipation
5 W
Max screen dissipation
1.5 W
Max cathode current
60 mA

Published ratings and characteristics promoted where clearly stated; identical repeated sections compressed when applicable.

Section 2

Pentode

X-ray radiationInterelectrode capacitances
Plate resistance
500000 Ω
Transconductance
0.0055 S
Max plate voltage
250 V
Max screen voltage
250 V
Max plate dissipation
2.5 W
Max screen dissipation
0.6 W
Max cathode current
25 mA

Published ratings and characteristics promoted where clearly stated; identical repeated sections compressed when applicable.

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

1968 Mazda Belvu

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • HeaterVoltageNominal

    6.3 V

    Nominal

  • HeaterCurrentNominal

    850 mA

    Nominal

  • Maximum Plate Voltage

    250 V

  • Maximum Screen Voltage

    250 V

  • Maximum Plate Dissipation

    5 W

  • Maximum Screen Dissipation

    1.5 W

  • Maximum Cathode Current

    60 mA

Characteristic

  • Transconductance

    18000 µS

    Typical

  • Plate Resistance

    100000 ohm

    Typical

SECTION 2

Pentode

Other

  • HeaterVoltageNominal

    6.3 V

    Nominal

  • HeaterCurrentNominal

    850 mA

    Nominal

  • Maximum Plate Voltage

    250 V

  • Maximum Screen Voltage

    250 V

  • Maximum Plate Dissipation

    2.5 W

  • Maximum Screen Dissipation

    0.6 W

  • Maximum Cathode Current

    25 mA

Characteristic

  • Transconductance

    5500 µS

    Typical

  • Plate Resistance

    500000 ohm

    Typical

Data set 02

1972 Philips Receiving Tubes

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristics

  • Heater voltage

    6.3 V

    Published nominal value

  • Heater current

    810 mA

    Published nominal value

SECTION 2

Pentode

Characteristics

  • Heater voltage

    6.3 V

    Published nominal value

  • Heater current

    810 mA

    Published nominal value

Data set 03

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • For cathode-bias operation

    0.5 MΩ

    Published in approved EFL200 target datasheet entry; Section1

  • Heater Voltage 6.3

    16.5 V

    Published in approved EFL200 target datasheet entry; Section1

  • Heater Current 0.8

    300 mA

    Published in approved EFL200 target datasheet entry; Section1

  • Peak Heater-Cathode Voltage ±200

    200 V

    Published in approved EFL200 target datasheet entry; Section1

  • Grid-No.2 Voltage 250

    250 V

    Published in approved EFL200 target datasheet entry; Section1

  • Cathode Current 60

    15 mA

    Published in approved EFL200 target datasheet entry; Section1

  • Plate Dissipation 5

    1.5 W

    Published in approved EFL200 target datasheet entry; Section1

  • Plate Voltage 170

    150 V

    Published in approved EFL200 target datasheet entry; Section1

  • Grid-No.2 Voltage 170

    150 V

    Published in approved EFL200 target datasheet entry; Section1

  • Internal Resistance 40

    160 kΩ

    Published in approved EFL200 target datasheet entry; Section1

  • Transconductance 21000

    8500 µS

    Published in approved EFL200 target datasheet entry; Section1

  • Grid-No. 1-Circuit Resistance 1

    1 MΩ

    Published in approved EFL200 target datasheet entry; Section1

Capacitance

  • Plate to All Other Elements (except grid No.l)

    7 pF

    Published in approved EFL200 target datasheet entry; Section1

  • Grid No.l to All Other Elements (except plate)

    12 pF

    Published in approved EFL200 target datasheet entry; Section1

  • Plate to Grid No.l

    95 pF

    Published in approved EFL200 target datasheet entry; Section1

  • Grid No.l to All Other Elements (except plate)

    10 pF

    Published in approved EFL200 target datasheet entry; Section1

  • Plate to Grid No.l

    140 pF

    Published in approved EFL200 target datasheet entry; Section1

  • Grid No.l to Heater <

    100 pF

    Published in approved EFL200 target datasheet entry; Section1

  • Plate to Plate <

    150 pF

    Published in approved EFL200 target datasheet entry; Section1

  • Grid to Grid <

    10 pF

    Published in approved EFL200 target datasheet entry; Section1

  • Plate (Unit No.l) to Grid No.l (Unit No.2) <

    100 pF

    Published in approved EFL200 target datasheet entry; Section1

  • Plate (Unit No.2) to Grid No.l (Unit No.2) <

    5 pF

    Published in approved EFL200 target datasheet entry; Section1

Characteristic

  • Plate Current 30

    10 mA

    Published in approved EFL200 target datasheet entry; Section1

SECTION 2

Pentode

Other

  • For cathode-bias operation

    0.5 MΩ

    Published in approved EFL200 target datasheet entry; Section2

  • Heater Voltage 6.3

    16.5 V

    Published in approved EFL200 target datasheet entry; Section2

  • Heater Current 0.8

    300 mA

    Published in approved EFL200 target datasheet entry; Section2

  • Peak Heater-Cathode Voltage ±200

    200 V

    Published in approved EFL200 target datasheet entry; Section2

  • Grid-No.2 Voltage 250

    250 V

    Published in approved EFL200 target datasheet entry; Section2

  • Cathode Current 60

    15 mA

    Published in approved EFL200 target datasheet entry; Section2

  • Plate Dissipation 5

    1.5 W

    Published in approved EFL200 target datasheet entry; Section2

  • Plate Voltage 170

    150 V

    Published in approved EFL200 target datasheet entry; Section2

  • Grid-No.2 Voltage 170

    150 V

    Published in approved EFL200 target datasheet entry; Section2

  • Internal Resistance 40

    160 kΩ

    Published in approved EFL200 target datasheet entry; Section2

  • Transconductance 21000

    8500 µS

    Published in approved EFL200 target datasheet entry; Section2

  • Grid-No. 1-Circuit Resistance 1

    1 MΩ

    Published in approved EFL200 target datasheet entry; Section2

Capacitance

  • Plate to All Other Elements (except grid No.l)

    7 pF

    Published in approved EFL200 target datasheet entry; Section2

  • Grid No.l to All Other Elements (except plate)

    12 pF

    Published in approved EFL200 target datasheet entry; Section2

  • Plate to Grid No.l

    95 pF

    Published in approved EFL200 target datasheet entry; Section2

  • Grid No.l to All Other Elements (except plate)

    10 pF

    Published in approved EFL200 target datasheet entry; Section2

  • Plate to Grid No.l

    140 pF

    Published in approved EFL200 target datasheet entry; Section2

  • Grid No.l to Heater <

    100 pF

    Published in approved EFL200 target datasheet entry; Section2

  • Plate to Plate <

    150 pF

    Published in approved EFL200 target datasheet entry; Section2

  • Grid to Grid <

    10 pF

    Published in approved EFL200 target datasheet entry; Section2

  • Plate (Unit No.l) to Grid No.l (Unit No.2) <

    100 pF

    Published in approved EFL200 target datasheet entry; Section2

  • Plate (Unit No.2) to Grid No.l (Unit No.2) <

    5 pF

    Published in approved EFL200 target datasheet entry; Section2

Characteristic

  • Plate Current 30

    10 mA

    Published in approved EFL200 target datasheet entry; Section2

Data set 04

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

    810 mA

    Heating