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Voltage - Dual Triode (similar high frequency) ·Triode-Triode

ECC189

Variable-mu twin triode intended for VHF cascode RF amplification with automatic gain control, particularly in television and radio tuner front ends.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
9C12
Socket code
B9A
Base pins
9
Nominal heater
6.3 V / 365 mA

Description

Variable-mu low-noise dual triode for cascode VHF amplifier service.

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
9C12
Socket code
B9A
Base pins
9
Nominal heater voltage
6.3 V
Nominal heater current
365 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

9C12 - 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

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
2720 Ω
Transconductance
0.0125 S
Amplification factor
31.25
Max plate voltage
130 V
Max plate dissipation
1.8 W
Max cathode current
22 mA

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

Section 2

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
2720 Ω
Transconductance
0.0125 S
Amplification factor
31.25
Max plate voltage
130 V
Max plate dissipation
1.8 W
Max cathode current
22 mA

Second physical triode section; added to align rows with SectionCount.

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

Triode

Characteristic

  • Indirect (cathodes isolees du filament)

    63 V

    Triode

  • Alimentation en paraliele ! f

    365.5 mA

    Triode

  • Capacite entre les anodes Caa’

    0.015 pF

    Triode

  • Capacite grille G-anode AA' Cga’

    0.004 pF

    Triode

Other

  • Tension de l'anode

    90 V

    Triode

  • Tension de la grille

    -12 V

    Triode

  • Courant anodique

    15 mA

    Triode

  • Resistance interne

    2.72 kohm

    Triode

  • Pente nominale

    125 mA/V

    Triode

  • Resistance equivalente de souffle

    0 ohm

    Triode

  • Tension de la grille a 5% de S nominaie. Vg (5%)

    -5 V

    Triode

  • Tension de la grille a 1 % de S nominale. Vg (1%)

    -9 V

    Triode

  • Puissance dissipee sur l'anode

    1.8 W

    Triode

  • Courant cathodique

    22 mA

    Triode

  • Tension de la grille

    50 V

    Triode

  • Resistance du circuit de la grille G

    1 Mohm

    Triode

  • en en se nn nn » Rkf

    20 kohm

    Triode

  • 500 u suu 000e u000 Vkf

    50 V

    Triode

  • 130 V

    150 V

    Triode

Capacitance

  • Capacite de la grille. Cg (K+f+—b)

    3.4 pF

    Triode

  • Capacite de l'anode Ca (kK+t+b)

    2.4 pF

    Triode

  • grile.….…

    19 pF

    Triode

  • ment

    22 pF

    Triode

  • cathode

    0.17 pF

    Triode

  • grille

    1.9 pF

    Triode

  • thode

    6.3 pF

    Triode

  • Capacite de l'anode. Ca'! (g'+f+b)

    39 pF

    Triode

  • lament

    3 pF

    Triode

Data set 02

1963 Amperex Condensed

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Heater voltage

    6.3 V

    Published heater rating

  • Heater current

    365 mA

    Published heater rating

  • Amplification factor

    34

    CascodeRF

  • Plate resistance

    2500 ohm

    CascodeRF

  • Transconductance

    12500 µS

    CascodeRF

Other

  • Plate voltage

    90 V

    CascodeRF

  • Control-grid bias

    -1.4 V

    CascodeRF

  • Plate current

    15 mA

    CascodeRF

Data set 03

1963 Philips Electron Tubes Handbook V1a

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Plate voltage

    90 V

  • Plate current

    15 mA

  • Maximum plate voltage

    130 V

  • Maximum plate dissipation

    1.8 W

Characteristic

  • Transconductance

    12500 uS

  • Amplification factor

    31.25

  • Plate resistance

    2.5 kohm

  • Transconductance at grid -5 V

    625 uS

    VariableMu

  • Transconductance at grid -9 V

    125 uS

    VariableMu

Capacitance

  • Grid-plate capacitance

    1.9 pF

  • Input capacitance

    3.5 pF

  • Output capacitance

    2.3 pF

Data set 04

1967 Mullard Receiving Tubes for Maintenance

Published operating points and test conditions from this source.

SECTION 1

Triode

Capacitance

  • Ca ' - g' 1.9

    1.9 pF

    Published in approved ECC189.pdf target datasheet; Section1

  • Cg ' - I;:' + h + s 3.5

    3.5 pF

    Published in approved ECC189.pdf target datasheet; Section1

  • Ca: - k'+h+s 2.3

    1.7 pF

    Published in approved ECC189.pdf target datasheet; Section1

  • Ca "- g'" 1.9

    1.9 pF

    Published in approved ECC189.pdf target datasheet; Section1

  • Cll "- 2:" + h + s 4.0

    3.4 pF

    Published in approved ECC189.pdf target datasheet; Section1

  • Ck "'- h 3.0

    3 pF

    Published in approved ECC189.pdf target datasheet; Section1

  • Ca'"-k " 170

    0.18 pF

    Published in approved ECC189.pdf target datasheet; Section1

Other

  • I"

    15 mA

    Published in approved ECC189.pdf target datasheet; Section1

  • Ik max

    22 mA

    Published in approved ECC189.pdf target datasheet; Section1

Data set 05

1968 Mazda Belvu

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

  • Heater voltage

    6.3 V

    Published nominal value

  • Heater current

    365 mA

    Published nominal value

  • Transconductance

    12500 µS

    Published nominal or operating characteristic

  • Variable-mu transconductance

    12.5 mA/V

    At Va=90 V, Vg=-1.4 V

  • Grid voltage for 0.125 mA/V transconductance

    -9 V

    Published gain-control characteristic

Other

  • Maximum plate dissipation

    1.8 W

    Published maximum rating

Data set 06

1972 Philips Receiving Tubes

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Heater voltage Vg

    6.3 V

  • Heater current I

    365 mA

  • Cathode to heater voltage Vkf max

    - to 50 V

    Maximum

  • hyp.c. component max

    - to 130 V

    Maximum

Data set 07

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Heater Voltage (ac/dc)

    6.3 V

    Published in approved ECC189 target datasheet entry; Section1

  • Plate Voltage 90 90

    90 V

    Published in approved ECC189 target datasheet entry; Section1

  • Grid Voltage —1.2 —5

    -9 V

    Published in approved ECC189 target datasheet entry; Section1

  • Plate Resistance (Approx.)

    2500 Ω

    Published in approved ECC189 target datasheet entry; Section1

  • Transconductance 1 2500 625

    125 µS

    Published in approved ECC189 target datasheet entry; Section1

  • Plate Current

    15 mA

    Published in approved ECC189 target datasheet entry; Section1

  • Plate Supply Voltage with plate current of

    0 mA

    Published in approved ECC189 target datasheet entry; Section1

  • Plate Supply Voltage with plate current of 0 mA

    550 V

    Published in approved ECC189 target datasheet entry; Section1

  • Plate Voltage (Each unit)

    130 V

    Published in approved ECC189 target datasheet entry; Section1

  • Grid Voltage, Negative-bias value (Each unit)

    50 V

    Published in approved ECC189 target datasheet entry; Section1

  • Cathode Current (Each unit)

    22 mA

    Published in approved ECC189 target datasheet entry; Section1

  • Plate Dissipation (Each unit)

    1.8 W

    Published in approved ECC189 target datasheet entry; Section1

  • RMS voltage between cathode and heater

    50 V

    Published in approved ECC189 target datasheet entry; Section1

  • RMS voltage between cathode and heater*

    50 V

    Published in approved ECC189 target datasheet entry; Section1

  • DC voltage between cathode and heater*

    130 V

    Published in approved ECC189 target datasheet entry; Section1

  • Supply Voltage

    180 V

    Published in approved ECC189 target datasheet entry; Section1

  • transconductance of

    125 µS

    Published in approved ECC189 target datasheet entry; Section1

  • transconductance of 125 /imhos

    500 mV

    Published in approved ECC189 target datasheet entry; Section1

  • Grid-Circuit Resistance (Each unit)

    1 MΩ

    Published in approved ECC189 target datasheet entry; Section1

  • Heater Voltage (ac/dc)

    6.3 V

    Published in approved ECC189 target datasheet entry; Section1

  • Heater Current

    300 mA

    Published in approved ECC189 target datasheet entry; Section1

  • Grid to Plate

    1.5 pF

    Published in approved ECC189 target datasheet entry; Section1

  • Grid to Cathode and Heater

    1.6 pF

    Published in approved ECC189 target datasheet entry; Section1

  • Plate to Cathode and Heater

    0.2 pF

    Published in approved ECC189 target datasheet entry; Section1

Capacitance

  • Plate to Cathode (Each Unit) 0.18

    0.17 pF

    Published in approved ECC189 target datasheet entry; Section1

  • 100000 ohms cathode resistor,

    2700 Ω

    Published in approved ECC189 target datasheet entry; Section1

Data set 08

1999 Philips E-Z

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Maximum cathode-heater voltage

    50 V

  • Maximum cathode-heater voltage cathode positive

    150 V