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Voltage Triode Pentode ·Pentode-Triode

ECL80

Triode-pentode for television synchronization, oscillator, mixer, and low-power amplifier circuits.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
B9A
Socket code
B9A
Base pins
9
Nominal heater
6.3 V / 300 mA

Description

Triode-pentode for television sync, oscillator, mixer, and low-power amplifier circuits.

Socket description

Small-button Noval 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
B9A
Socket code
B9A
Base pins
9
Nominal heater voltage
6.3 V
Nominal heater current
300 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

B9A - 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
150000 Ω
Transconductance
0.0033 S
Amplification factor
14
Max plate voltage
400 V
Max screen voltage
250 V
Max plate dissipation
3.5 W
Max screen dissipation
1.2 W
Max cathode current
25 mA

Pentode section; values semantically promoted from published characteristics/maximum-ratings tables where present.

Section 2

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
12500 Ω
Transconductance
0.0019 S
Amplification factor
17.5
Max plate voltage
200 V
Max plate dissipation
1 W
Max cathode current
8 mA

Triode section; values semantically promoted from published characteristics/maximum-ratings tables where present.

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

1951 Mullard Valve and Service Manual

Published operating points and test conditions from this source.

SECTION 1

Pentode

Application

  • Service

    Output pentode

SECTION 2

Triode

Application

  • Service

    Oscillator / voltage amplifier

Data set 02

1951 Philips Receiving Tubes for Television

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • Anode Voltage

    200 V

    SoundOutput

  • Screen Voltage

    200 V

    SoundOutput

  • Anode Current

    17.5 mA

    SoundOutput

  • Screen Current

    3.3 mA

    SoundOutput

  • Matching Resistance

    11000 ohm

    SoundOutput

  • Power Output

    1.4 W

    SoundOutput

  • Positive Peak Anode Voltage

    1200 V

    PulseDuration<=2ms

  • Negative Peak Anode Voltage

    500 V

Characteristics

  • Transconductance

    3300 uS

    AnodeVoltage=200V

SECTION 2

Triode

Characteristics

  • Anode Voltage

    100 V

  • Anode Current

    8 mA

  • Transconductance

    1900 uS

Data set 03

1953 La Radiotechnique

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristic

  • Alimentation du filament en serie ou en parallele. ' If

    300 mA

    Pentode

Other

  • Haute tension

    250 V

    Pentode

  • Tension de l'anode

    2560 V

    Pentode

  • Tension de la grille 2

    200 V

    Pentode

  • grille 2

    4.7 kohm

    Pentode

  • Tension de la grille 1

    122 V

    Pentode

  • Courant anodique

    14 mA

    Pentode

  • Courant de la grille 2

    256 mA

    Pentode

  • Impedance de charge

    18 kohm

    Pentode

  • Puissance de sortie

    1.555 W

    Pentode

  • Tension d'entree

    5.3 V

    Pentode

  • Tension de l'anode

    20 V

    Pentode

  • Tension de la grille 3

    0 V

    Pentode

  • Tension de la grille 2

    12 V

    Pentode

  • Tension de la grille 1

    1.45 V

    Pentode

  • Courant anodique

    1 mA

    Pentode

  • Capacite de la grille 1

    4.9 pF

    Pentode

  • Capacite anode-grille 1

    0.2 pF

    Pentode

  • Courant cathodique

    25 mA

    Pentode

  • Resistance du circuit de la grille 1

    1 Mohm

    Pentode

  • — 50 V et Vg»

    26 mA

    Pentode

  • Vap — 60 V et Vg,— 200 V la crete < 31 mA

    31 mA

    Pentode

  • Vap — 70 V et Vg, — 250 V la crete < 42 mA

    42 mA

    Pentode

SECTION 2

Triode

Other

  • Tension de l'anode

    100 V

    Triode

  • Tension de la grille

    23 V

    Triode

  • Courant anodique

    4 mA

    Triode

  • Puissance dissipee sur l'anode

    1 W

    Triode

  • Courant cathodique

    8 mA

    Triode

  • Resistance du cireuit de la grille

    1 Mohm

    Triode

  • Resistance entre filament et cathode

    20 kohm

    Triode

  • Tension entre filament et cathode

    150 V

    Triode

Capacitance

  • Capacite de la grille

    3.3 pF

    Triode

  • Capacite de l'anode

    3.3 pF

    Triode

  • Capacite anode-grille

    0.9 pF

    Triode

Data set 04

1958 Brimar Radio Valve No 7

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristic

  • Application

    FrameOutputSyncSeparatorOrAudioOutput

SECTION 2

Triode

Characteristic

  • Heater Voltage

    6.3 V

  • Heater Current

    300 mA

  • Application

    FrameBlockingOscillatorOrAFAmplifier

Data set 05

1961 Ferranti Technical Handbook

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristic

  • Application

    Frame output sync separator audio output

SECTION 2

Triode

Characteristic

  • Heater Voltage

    6.3 V

  • Heater Current

    300 mA

  • Application

    Frame blocking oscillator line blocking oscillator audio voltage amplifier

Data set 06

1963 Philips Electron Tubes Handbook V1a

Published operating points and test conditions from this source.

SECTION 2

Triode

Characteristic

  • Heater voltage

    6.3 V

    Published heater rating

  • Heater current

    300 mA

    Published heater rating

  • Triode transconductance

    1900 µS

    TriodeSection

  • Triode amplification factor

    20

    TriodeSection

Other

  • Triode plate voltage

    100 V

    TriodeSection

  • Triode plate current

    8 mA

    TriodeSection

  • Pentode plate voltage

    170 V

    PentodeSection AudioOutput

  • Pentode screen voltage

    170 V

    PentodeSection AudioOutput

Data set 07

1967 Mullard Receiving and Amplifying Valves

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristic

  • Plate Voltage

    200 V

    PentodeSection

  • Screen Voltage

    200 V

    PentodeSection

  • Plate Current

    17.5 mA

    PentodeSection

  • Screen Current

    3.3 mA

    PentodeSection

  • Grid Voltage

    -8 V

    PentodeSection

  • Transconductance

    3300 uS

    PentodeSection

  • Plate Resistance

    150000 ohm

    PentodeSection

  • Grid1-to-Grid2 Amplification Factor

    14

    PentodeSection

  • Plate Resistance

    150000 ohm

  • Transconductance

    3300 uS

  • Amplification Factor

    14

Other

  • Maximum Plate Voltage

    400 V

  • Maximum Screen Voltage

    250 V

  • Maximum Plate Dissipation

    3.5 W

  • Maximum Screen Dissipation

    1.2 W

  • Maximum Cathode Current

    25 mA

  • Interelectrode Capacitance Data Published

    1

    SourceTablePresent

SECTION 2

Triode

Characteristic

  • Plate Voltage

    100 V

    TriodeSection

  • Plate Current

    4 mA

    TriodeSection

  • Grid Voltage

    -2.3 V

    TriodeSection

  • Transconductance

    1400 uS

    TriodeSection

  • Plate Resistance

    12500 ohm

    TriodeSection

  • Amplification Factor

    17.5

    TriodeSection

  • Plate Resistance

    12500 ohm

  • Transconductance

    1400 uS

  • Amplification Factor

    17.5

Other

  • Maximum Plate Dissipation

    1 W

  • Maximum Cathode Current

    8 mA

  • Interelectrode Capacitance Data Published

    1

    SourceTablePresent

Data set 08

1968 Mazda Belvu

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

    250 V

  • Maximum Screen Voltage

    250 V

  • Maximum Plate Dissipation

    3.5 W

  • Maximum Screen Dissipation

    0.7 W

  • Maximum Cathode Current

    30 mA

Characteristic

  • Transconductance

    6500 µS

    Typical

  • Plate Resistance

    300000 ohm

    Typical

SECTION 2

Triode

Other

  • HeaterVoltageNominal

    6.3 V

    Nominal

  • HeaterCurrentNominal

    300 mA

    Nominal

  • Maximum Plate Voltage

    250 V

  • Maximum Plate Dissipation

    1.5 W

  • Maximum Cathode Current

    15 mA

Characteristic

  • Transconductance

    3500 µS

    Typical

  • Amplification Factor

    20

    Typical

  • Plate Resistance

    18000 ohm

    Typical

Data set 09

1973 Mazda Valves Binder 2

Published operating points and test conditions from this source.

SECTION 2

Triode

Other

  • Heater Voltage V6 6

    -3 V

  • Heater Current Ih

    300 mA

  • Maximum Anode Dissipation pa(max) 1.0

    35 w

  • Maximum Screen Grid Dissipation pg2(max)

    12 w

  • Maximum Anode Supply Voltage Va(b)max 550

    550 V

  • Maximum Anode Voltage Va(max) 200

    400 V

  • Maximum Screen Grid Supply Voltage V$2 (b)max

    550 V

  • Maximum Screen Grid Voltage V82 (max)

    250 V

  • Maximum Cathode Current Ik(max) 8.0

    25 mA

  • Maximum Heater to Cathode Voltage Vh-k(max)

    150 V

  • Control Grid to Heater c8t-h <0.05 <

    25 pF

  • Heater to Cathode ch-k

    3.7 pF

Characteristic

  • Ikp =

    12 mA

  • Ikp =

    20 mA

  • Anode to Grid ca-g 0.9 <

    2 pF

  • Triode Grid to Pentode Anode Cgt-ap <

    0.12 pF

  • Triode Anode to Pentode Anode cat-up <

    1.2 pF

  • Triode Grid to Pentode Grid 1 Cgt-g1 <0

    -2 pF

  • Triode Anode to Pentode Grid 1 cat-g1 <

    2 pF

  • Pentode Input Clnlpl

    4.5 pF

  • Pentode Output Cout(p)

    5 pF

  • Triode Grid to Cathode Cgt-k

    20 pF

  • Triode Anode to Cathode cat-k

    3 pF

  • Anode Voltage Va 100 170

    200 V

Data set 10

1999 Philips 0-D

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristics

  • Heater voltage

    6.3 V

  • Heater current

    300 mA

  • Transconductance

    3400 uS

    Pentode

  • Plate resistance

    150000 ohm

    Pentode

Other

  • Plate voltage

    200 V

    Pentode;PowerAmplifier

  • Screen voltage

    200 V

    Pentode;PowerAmplifier

  • Plate current

    17.5 mA

    Pentode;PowerAmplifier

  • Screen current

    3.3 mA

    Pentode;PowerAmplifier

  • Plate load resistance

    11000 ohm

    Pentode;PowerAmplifier

  • Maximum plate dissipation

    3.9 W

    Pentode

  • Maximum screen dissipation

    0.75 W

    Pentode

Capacitance

  • Pentode input capacitance

    4.6 pF

  • Pentode output capacitance

    4.7 pF

SECTION 2

Triode

Capacitance

  • Triode plate-grid capacitance

    1 pF

  • Triode grid-cathode capacitance

    2.3 pF

  • Triode plate-cathode capacitance

    1.1 pF

Data set 11

1999 Philips E-Z

Published operating points and test conditions from this source.

SECTION 2

Triode

Characteristic

  • Chauffage: indirect par C.A. ou C.C.; Ve

    6.3 V

    Published datasheet value

  • ou en série Ir

    300 mA

    Published datasheet value

Capacitance

  • Cg

    2.1 pF

    Published datasheet value

  • Cg = 2,1 pF Cgl

    4.3 pF

    Published datasheet value

  • Ca

    0.8 pF

    Published datasheet value

  • Ca = 0,8 pF Ca

    4.8 pF

    Published datasheet value

  • Cag

    0.9 pF

    Published datasheet value

  • Cag = 0,9 pF Cagl <

    0.2 pF

    Published datasheet value

  • Cgf <

    0.05 pF

    Published datasheet value

  • CaT-glP ¢

    0.2 pF

    Published datasheet value

  • CgT—aP <

    0.12 pF

    Published datasheet value

  • CgT-g‘lP <

    0.2 pF

    Published datasheet value

  • CaT-aP <

    1.2 pF

    Published datasheet value

Other

  • Va=Vp = 170 200

    250 v

    Published datasheet value

  • S = 3,2 3,3

    2.6 ma/V

    Published datasheet value

  • Wo (d

    10 %

    Published datasheet value

  • Wo (d = 10%) = 1,0 1,4

    1.55 w

    Published datasheet value

  • Vi (d

    10 %

    Published datasheet value

  • Vi (d = 10%) = 3,7 4,1

    5.3 v

    Published datasheet value

  • Wio (q

    50 %

    Published datasheet value

  • Wio (q = 50%) = 1,27 1,75

    1.75 W

    Published datasheet value

  • Vi (p

    50 %

    Published datasheet value

  • Vi (p = 50%) = 4,4 5,1

    5.9 v

    Published datasheet value

  • Vi (Wo

    50 mW

    Published datasheet value