ME1402

Subminiature electrometer tetrode for precision measurement, specified for extraordinarily low grid current around 3×10⁻¹⁵ A and low-power DC filament operation.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 1.25 V / 13 mA

Description

SUBMINIATURE ELECTROMETER TETRODE ME I 02 Subminiature electrometer tetrode with a grid current of 3 x 10-15A. FILAMENT Suitable for d.c. operation only. Vi 1.25 N I 13 mA MOUNTING POSITION Any CAPACITANCES Ca.g 2.5 pF Cout 0.8 pF CHARACTERISTICS (All voltages are with respect The supplied datasheet publishes electrical ratings and characteristics for this tetrode 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

Tetrode

X-ray radiationInterelectrode capacitances

Transconductance: 0.000017 S
Max plate voltage: 10 V

Promoted values taken from published characteristics and absolute/limiting ratings.

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

1963 Mullard

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Other

Heater or filament voltage
1.25 V
Heater or filament current
13 mA
MaxPlateVoltage
10
Promoted field source value

Characteristic

Transconductance
0.000017
Promoted field source value