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Voltage - Triode (with diode, heptode or hexode) ·Diode-Diode-Triode

EBC3

Double-diode triode for receiver detection, automatic-volume-control generation, and audio-frequency voltage amplification. Two diodes provide signal and control rectification while the triode supplies subsequent audio gain.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
3
Base
-
Socket code
SIDE8
Base pins
-
Nominal heater
6.3 V / 200 mA

Description

EBC3 is listed in the supplied valve table as a duodiode-triode. Published operating and characteristic values were transcribed from its target row.

Socket description

European side-contact 8-contact base

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
SIDE8
Base pins
-
Nominal heater voltage
6.3 V
Nominal heater current
200 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

3 physical sections, each with unique specifications.

Section 1

Diode

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Published target-row operating and characteristic values reviewed.

Section 2

Diode

X-ray radiationInterelectrode capacitances
Max plate voltage
200 V
Rectifier nominal output current
0.8 mA

Published target-row operating and characteristic values reviewed.

Section 3

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
15000 Ω
Transconductance
0.002 S
Amplification factor
30
Max plate voltage
300 V
Max plate dissipation
1.5 W
Max cathode current
10 mA

Published target-row operating and characteristic values reviewed.

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

1938 Philips Miniwatt Vacuum Tube Catalog

Published operating points and test conditions from this source.

SECTION 3

Triode

Other

  • Plate voltage

    250 V

    Published European table row

  • Plate current

    5 mA

    Published European table row

  • Control-grid bias

    5.5 V

    Published European table row

Characteristic

  • Plate resistance

    15000 ohm

    Published European table row

  • Transconductance

    2000 µS

    Published European table row

  • Amplification factor

    30

    Published European table row

  • Heater/filament voltage

    6.3 V

    Published European table row

  • Heater/filament current

    200 mA

    Published European table row

Capacitance

  • Grid-to-plate capacitance

    1.4 pF

    Published European table row

Data set 02

1999 Philips E-Z

Published operating points and test conditions from this source.

SECTION 2

Diode

Other

  • Maximum diode current

    0.8 mA

  • Maximum diode peak voltage

    200 V

SECTION 3

Triode

Characteristics

  • Heater voltage

    6.3 V

  • Heater current

    200 mA

  • Typical plate voltage

    250 V

  • Transconductance

    2000 uS

  • Amplification factor

    30

  • Plate resistance

    15000 ohm

Other

  • Maximum plate voltage

    300 V

  • Maximum plate dissipation

    1.5 W