10J12S

Russian pentode documented in bilingual manufacturer literature with guaranteed electrical characteristics. The available source establishes pentode operation but does not expose enough explicit application wording to justify a stronger functional category than its existing sharp-cutoff grouping.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: IO
Base pins: 6
Nominal heater: 10 V / 320 mA

Description

The 10J12S is a pentode described in the bilingual Russian/English source.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: IO
Base pins: 6
Nominal heater voltage: 10 V
Nominal heater current: 320 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

Pentode

X-ray radiationInterelectrode capacitances

Plate resistance: 500000 Ω
Transconductance: 0.00185 S
Max plate voltage: 250 V
Max screen voltage: 180 V
Max plate dissipation: 1.9 W
Max screen dissipation: 0.4 W

Published ratings/characteristics promoted where clearly identified; additional bilingual values retained as parameters.

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

1970 Russian Tubes Mashpriborintorg

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristics

Guaranteed service life
1000 h
PublishedGuarantee
Transconductance
1.85 mA/V
PublishedElectricalCharacteristics