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

Voltage - Dual Triode (similar) ·Triode-Triode

6MN1B

Russian miniature twin triode intended for voltage amplification and general electronic service, combining two triode sections in a compact receiving-tube envelope.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
-
Socket code
-
Base pins
-
Nominal heater
6.3 V / 200 mA

Description

Dual-triode mechanotron for precision measurement of linear displacement and force. Extracted and translated from the complete Russian entry corresponding to the PDF filename; neighboring page-break fragments were excluded.

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
6.3 V
Nominal heater current
200 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

2 physical sections, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
25000 Ω
Transconductance
0.001 S
Max plate voltage
150 V
Max plate dissipation
1 W
Max cathode current
2.5 mA

Values promoted from the complete filename-matched Russian entry only.

Section 2

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
25000 Ω
Transconductance
0.001 S
Max plate voltage
150 V
Max plate dissipation
1 W
Max cathode current
2.5 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

1981 Russian Tubes Katsnelson and Larionov

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Plate current

    1.5 mA

    Translated from Russian source; filename-matched entry only

  • Transconductance

    1 mA/V

    Translated from Russian source; filename-matched entry only

  • Internal resistance

    25 kOhm

    Translated from Russian source; filename-matched entry only

  • Voltage sensitivity to displacement

    200 mV/um

    Translated from Russian source; filename-matched entry only

  • Service life minimum

    2100 h

    Translated from Russian source; filename-matched entry only

  • Maximum applied force

    0.4 N

    Translated from Russian source; filename-matched entry only