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Voltage - Dual Triode (similar) ·Triode-Triode

6386

Special-quality medium-mu twin triode with closely matched sections for remote-cutoff cascode RF/IF amplifier and mixer service, emphasizing mechanical strength, reliability, and stable gain-control performance.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
E9-1
Socket code
B9A
Base pins
9
Nominal heater
6.3 V / 350 mA

Description

The 6386 is a miniature medium-mu twin triode with closely matched sections intended for remote-cutoff cascode RF/IF amplifier and mixer service. It is a special-quality industrial tube emphasizing mechanical strength, reliability, and stable cascode performance.

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
E9-1
Socket code
B9A
Base pins
9
Nominal heater voltage
6.3 V
Nominal heater current
350 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

E9-1 - 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
4250 Ω
Transconductance
0.004 S
Amplification factor
17
Max plate voltage
300 V
Max plate dissipation
1.5 W
Max cathode current
18 mA

Promoted from clearly identified printed ratings/characteristics; additional published operating points and capacitances retained in TUBE_SECTION_PARAMETER.

Section 2

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
4250 Ω
Transconductance
0.004 S
Amplification factor
17
Max plate voltage
300 V
Max plate dissipation
1.5 W
Max cathode current
18 mA

Second identical 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

195X General Electric Essential Characteristics

Published operating points and test conditions from this source.

SECTION 1

Triode

Capacitance

  • Input capacitance

    2 pF

    EachSection

  • Output capacitance

    1.1 pF

    EachSection

  • Grid-to-plate capacitance

    1.2 pF

    EachSection

Other

  • Plate voltage

    100 V

    ClassA;EachSection

  • Cathode resistor

    200 Ω

    ClassA;EachSection

  • Plate current

    9.6 mA

    ClassA;EachSection

Characteristic

  • Plate resistance

    4250 Ω

    EachSection

  • Transconductance

    4000 µS

    EachSection

  • Amplification factor

    17

    EachSection

Data set 02

1968 General Electric Co

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • The

    6386 C

  • Pin

    2 C

  • GENERAL Pin

    3 C

  • Pin

    7 C

  • Gridto Grid ovvii it it it ieenoanas

    0.003 C

  • Plate Voltage o i i i e e e ettt e e e

    300 V

  • Plate Dissipation i i i e et et e

    1.5 W

  • I When the GL

    6386 C

  • voltage of the grounded-grid stage may be as high as

    250 V

Characteristic

  • Plate Vol age o e e e e e i

    100 V

    CLASS A; AMPLIFIER, EACH SECTION

  • Esig

    1 V

    CLASS A; AMPLIFIER, EACH SECTION

  • Ef

    7.5 V

    CLASS A; AMPLIFIER, EACH SECTION

  • E4

    6.3 V

    CLASS A; AMPLIFIER, EACH SECTION

  • Ep

    250 V

    CLASS A; AMPLIFIER, EACH SECTION

  • GRID-NUMBER

    1 V

    CLASS A; AMPLIFIER, EACH SECTION

  • VM NN L E

    6.3 V

    CLASS A; AMPLIFIER, EACH SECTION

  • HH e

    6.3 V

    CLASS A; AMPLIFIER, EACH SECTION

  • N N Ef

    6.3 V

    CLASS A; AMPLIFIER, EACH SECTION