Skip to main content
Tube Tinker — Electron Tube Database
Alternatives & variationsDownload PDF datasheet

Voltage - Triode (single high frequency) ·Triode

EC80

Radiation-cooled UHF triode for high-frequency RF service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
9C12
Socket code
B9A
Base pins
9
Nominal heater
6.3 V / 450 mA

Description

EC80 is listed in the supplied Amperex material as a radiation-cooled UHF triode. Published operating conditions and electrical characteristics were captured from the supplied tables.

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
450 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

1 physical section, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances
Transconductance
0.012 S
Amplification factor
80
Max plate voltage
300 V
Max plate dissipation
4 W
Max cathode current
15 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

1953 La Radiotechnique

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • (500 MHz maximum)

    500 MHz

    Triode

  • Tension de l'anode

    250 V

    Triode

  • Tension de la grille

    1.5 V

    Triode

  • Courant anodique

    15 mA

    Triode

  • Pente

    12 MA/V

    Triode

  • Tension de l'anode

    300 V

    Triode

  • Puissance dissipee sur l'anode

    4 W

    Triode

  • Courant cathodique

    15 mA

    Triode

  • Tension de la grille (lg

    1.8 V

    Triode

  • Resistance du circuit de la grille

    3 Mohm

    Triode

  • Tension entre cathode et filament

    100 V

    Triode

  • (500 MHz maximum)

    500 MHz

    Triode

Characteristic

  • Indirect (cathode isolee du filament)

    68 V

    Triode

  • Alimentation en parallele f

    480 mA

    Triode

Capacitance

  • Capacite de la grille et de la broche 6. C (g-!- 6) (k+4- f)

    5.1 pF

    Triode

  • Capacite anode-cathode

    0.075 pF

    Triode

  • (cathode, filament). Ca (k+ f) < 0,08 pF

    0.08 pF

    Triode

  • filament)

    3.4 pF

    Triode

  • Capacite cathode-filament

    8 pF

    Triode

  • (500 MHz maximum)

    500 MHz

    Triode

Data set 02

1958 Amperex Industrial

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Maximum plate voltage

    550 V

    Published table

  • Maximum plate dissipation

    30 W

    UHF

  • Maximum plate current

    15 mA

    UHF

  • Maximum frequency

    500 MHz

    UHF

Characteristic

  • Transconductance

    12000 µS

    Published table

  • Heater/filament voltage

    6.3 V

    Published rating

  • Heater/filament current

    450 mA

    Published rating

  • Gain

    15 dB

    At 300 MHz

  • Bandwidth

    4.5 MHz

    At 300 MHz

Data set 03

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

    450 mA

    Published heater rating

  • Transconductance

    12000 µS

    UHF

  • Gain

    15 dB

    At 300 MHz

  • Bandwidth

    4.5 MHz

    At 300 MHz

Other

  • Maximum plate dissipation

    30 W

    UHF

  • Maximum plate voltage

    550 V

    UHF

  • Maximum plate current

    15 mA

    UHF

  • Maximum frequency

    500 MHz

    UHF

Data set 04

1963 Philips Electron Tubes Handbook V1a

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Plate voltage

    250 V

  • Grid voltage

    -1.5 V

  • Plate current

    15 mA

  • Maximum plate voltage

    300 V

  • Maximum plate dissipation

    4 W

  • Maximum useful frequency

    500 MHz

Characteristic

  • Transconductance

    12000 uS

  • Amplification factor

    80

Capacitance

  • Plate-to-cathode capacitance

    0.08 pF

  • Input capacitance

    9.3 pF

  • Output capacitance

    3.4 pF

Data set 05

1963 Philips Electron Tubes Handbook V3

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Heater voltage

    6.3 V

    Published heater rating

  • Heater current

    430 mA

    Published heater rating

  • Transconductance

    12000 µS

    UHF

  • Amplification factor

    80

    UHF

Other

  • Plate voltage

    250 V

    UHF

  • Grid bias

    -1.5 V

    UHF

  • Plate current

    15 mA

    UHF

  • Maximum plate voltage

    300 V

    Published limit

  • Maximum plate dissipation

    4 W

    Published limit

Data set 06

1999 Philips E-Z

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Typical anode voltage

    250 V

Characteristic

  • Anode-grid capacitance

    0.08 pF

    Maximum

  • Cathode-heater capacitance

    8 pF

    Maximum