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Voltage - Dual Triode (similar) ·Triode-Triode

ECC802S

Special-quality long-life medium-mu twin triode for professional voltage amplification and control service, corresponding functionally to the ECC82 family.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
-
Socket code
B9A
Base pins
9
Nominal heater
12.6 V / 150 mA

Description

Special-quality twin triode for professional service; equivalent to 6189.

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
-
Socket code
B9A
Base pins
9
Nominal heater voltage
12.6 V
Nominal heater current
150 mA
Parallel heater voltage
6.3 V
Parallel heater current
300 mA
Series capable
Yes

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
7700 Ω
Transconductance
0.0022 S
Amplification factor
17
Max plate voltage
300 V
Max plate dissipation
2.75 W
Max cathode current
15 mA

Representative row for two electrically identical triode sections.

Section 2

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
7700 Ω
Transconductance
0.0022 S
Amplification factor
17
Max plate voltage
300 V
Max plate dissipation
2.75 W
Max cathode current
15 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 AEG

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Typical Plate Voltage

    250 V

  • Typical Plate Current

    10.6 mA

Capacitance

  • GridPlateCapacitance

    1.6 pF

  • Grid Earth Capacitance

    1.75 pF

Data set 02

1959 Telefunken

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Heater Voltage

    6.3 V

  • Heater Current

    300 mA

Data set 03

195X Tesla

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

  • Interelectrode capacitances

    Published

    See source sheet for electrode-specific capacitance values

Data set 04

199X JJ

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Typical Plate Voltage

    250 V

  • Typical Plate Current

    10.5 mA

Characteristic

  • Grid Cathode Capacitance

    1.6 pF

  • Plate Capacitance

    0.5 pF

  • GridPlateCapacitance

    1.5 pF

  • PlateCapacitanceSystem1

    0.5 pF

    Section1

  • PlateCapacitanceSystem2

    0.4 pF

    Section2

Data set 05

2026 JJ Electronic

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

  • Ua

    250 V

    Published value

  • Rk

    800 Ω

    Published value

  • Ia

    10.5 mA

    Published value

  • S

    2200 µS

    Published value

  • Ri

    7.7 kΩ

    Published value

  • µ

    17

    Published value

Other

  • Ua

    330 V

    Published value

  • Wa

    3 W

    Published value

  • Ik

    22 mA

    Published value

  • Rg

    1 MΩ

    Published value

  • Uk/f

    100 V

    Published value

Capacitance

  • cg/k

    1.6

    Published value

  • ca

    0.5

    Published value

  • cg/a

    1.5

    Published value