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Voltage - Triode (single) ·Triode

EM7

Russian triode documented in translated reference literature; available source evidence does not support a narrower functional assignment without speculation.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
LOCTAL8
Base pins
-
Nominal heater
-

Description

Triode vacuum tube described in the Russian reference source. Technical description is translated to English from the complete filename-matched entry.

Socket description

Loctal 8-contact base

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
LOCTAL8
Base pins
-
Nominal heater voltage
-
Nominal heater current
-
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

No fixed ratings are recorded for this section.

Filename-matched Russian entry only.

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

Characteristics

  • Heater current

    18 mA

    Translated from Russian source; Ток накала . . . . . . , . . . .. .. . , 18 мА

  • Plate current

    -

    Translated from Russian source; Ток анода. . . . . , . .. ., . .. ,. , (160=-90) мкА

  • Transconductance

    -

    Translated from Russian source; Крутизна характеристики . . . . . . . . . » 130‚'*_?8 мКА /В

  • Amplification factor

    53

    Translated from Russian source; Коэффициент усиления. . . . . в в е в оо о 1›53?%

  • Transconductance

    -

    Translated from Russian source; крутизна характеристики . . . ‚ . , . . ‚ 60 мкА/В

Other

  • Service life

    2500 h

    Translated from Russian source; Наработка . . . . . .. .. . . .. . еа 2500 ч

  • Heater voltage

    1.2 V

    Translated from Russian source; Напряжение накала . . ‚ . . .. .. . .. , , 0,9—1,2 В

  • Plate voltage

    7.7 V

    Translated from Russian source; Напряжение анода ке . 6,3—7,7 В