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Voltage - Triode (single high frequency) ·Triode

6N4

High-frequency triode for oscillator and signal-generation service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
7CA
Socket code
-
Base pins
7
Nominal heater
6.3 V / 200 mA

Description

High-frequency triode for oscillator service.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
7CA
Socket code
-
Base pins
7
Nominal heater voltage
6.3 V
Nominal heater current
200 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

7CA - 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
Plate resistance
5400 Ω
Transconductance
0.006 S
Amplification factor
32
Max plate voltage
180 V

Promoted from printed maximum-rating/characteristic columns; additional published operating points and capacitances retained as parameters.

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

195X General Electric Essential Characteristics

Published operating points and test conditions from this source.

SECTION 1

Triode

Capacitance

  • Input capacitance

    3 pF

    Section1

  • Output capacitance

    1.6 pF

    Section1

  • Grid-to-plate capacitance

    1.1 pF

    Section1

Other

  • Plate voltage

    180 V

    ClassA

  • Control-grid voltage

    -3.5 V

    ClassA

  • Plate current

    12 mA

    ClassA

Characteristic

  • Plate resistance

    5400 Ω

    ClassA

  • Transconductance

    6000 µS

    ClassA

  • Amplification factor

    32

    ClassA

Data set 02

195X Raytheon Special Purpose Tubes

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Control-grid voltage

    -3.5 V

    HFOscillator

  • Plate voltage

    180 V

    HFOscillator

  • Plate current

    12 mA

    HFOscillator

Characteristic

  • Plate resistance

    5330 Ω

    Section1

  • Transconductance

    6000 µS

    Section1

  • Amplification factor

    32

    Section1

Data set 03

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Heater voltage

    6.3 V

  • Heater current

    200 mA

  • Plate voltage

    180 V

    Typical operating conditions

  • Plate current

    12 mA

    Typical operating conditions