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Voltage - Triode (under 100V) ·Triode

ME1401

Subminiature electrometer triode for extremely low-grid-current DC measurement and very-high-input-resistance instrumentation.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
1.25 V / 13 mA

Description

SUBMINIATURE TRIODE ELECTROMETER Subminiature electrometer triode with a grid current MEI1401 of 10134, FILAMENT Suitable for d.c. operation only. Vi 1.25 \ It 13 mA MOUNTING POSITION Any CAPACITANCES » Cag 2.0 pF Cg..f 0.6 pF Ca t 0.8 pF CHARACTERISTICS (All voltages are with The supplied datasheet publishes electrical ratings and characteristics for this triode device.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
-
Base pins
-
Nominal heater voltage
1.25 V
Nominal heater current
13 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

1 physical section, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances
Transconductance
0.00008 S
Amplification factor
2
Max plate voltage
25 V

Published ratings/characteristics promoted where clearly stated; repeated identical rectifier sections compressed to one section row.

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

Characteristics

  • Heater voltage

    1.25 V

    Published nominal value

  • Heater current

    13 mA

    Published nominal value

  • Transconductance

    80 µS

    Published typical/nominal value

  • Grid current

    - to 0.00000000125 mA

    Dark condition; published range

Capacitance

  • Anode-grid capacitance

    2 pF

    Published

Data set 02

1963 Mullard

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Heater or filament voltage

    1.25 V

  • Heater or filament current

    13 mA

  • MaxPlateVoltage

    25

    Promoted field source value

Characteristic

  • Transconductance

    0.00008

    Promoted field source value

  • Amplification Factor

    2

    Promoted field source value