6N9S

Russian high-mu double triode designed for low-frequency voltage amplification, providing two high-gain sections for audio and general signal service.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: -
Socket code: IO
Base pins: 8
Nominal heater: 6.3 V / 300 mA

Description

The 6H9C double triode is designed for ampli- JIeHHS] HaNpsxkKeHUs] HU3KOH YaCTOTHI.

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: 8
Nominal heater voltage: 6.3 V
Nominal heater current: 300 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

Transconductance: 0.0017 S
Amplification factor: 70
Max plate voltage: 300 V
Max plate dissipation: 1 W

Bilingual Russian/English datasheet; English text used as primary extraction source.

Section 2

Triode

X-ray radiationInterelectrode capacitances

Transconductance: 0.0017 S
Amplification factor: 70
Max plate voltage: 300 V
Max plate dissipation: 1 W

Second 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

195X Russian

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

Heater voltage
6.3 V
Published nominal heater condition.
Heater current
300 mA
Published heater current.
Transconductance
1600 µS
Published characteristic; normalized to µS.
Amplification factor
70
Published characteristic.

Other

Maximum plate voltage
300 V
Published limiting operating value.
Maximum plate dissipation
1 W
Published limiting operating value.

Data set 02

1970 Russian Tubes Mashpriborintorg

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

U
63 V
Published datasheet line: U, 63V ) 23+1,3 mA
I
30025 mA
Published datasheet line: I, 30025 mA SY) 1,7x05 mA/V
U
250 V
Published datasheet line: U, 250V nl) 70x15
Uyy
—2 V
Published datasheet line: Uyy —2V
Coe
1732 pF
Published datasheet line: Coe 1732 pF
Chu
03—16 pF
Published datasheet line: Chu 03—16pF
Cgla
1,5—4,0 pF
Published datasheet line: Cgla 1,5—4,0 pF
U
7 V
Published datasheet line: U, 7V 57V
U
275 V
Published datasheet line: U, 275 V
Uy
100 V
Published datasheet line: Uy, 100 V
Ry
0,5 MQ
Published datasheet line: Ry 0,5 MQ

Other

U
7 V
Published datasheet line: U, 7V 57V
U
275 V
Published datasheet line: U, 275 V
Uy
100 V
Published datasheet line: Uy, 100 V
Ry
0,5 MQ
Published datasheet line: Ry 0,5 MQ
PublishedValue
8 mA
Published datasheet line: 8 350;/ ay Ly mA
PublishedValue
15 mA
Published datasheet line: 15.mA LT TAT]I I 400V
r
=0 V
Published datasheet line: r =0V Y | vA 12v

Data set 03

1981 Russian Tubes Katsnelson and Larionov

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

Nominal heater voltage
6.3 V
Published source value
Nominal heater current
300 mA
Published source value
Transconductance
1700 uS
Published operating point
Amplification factor
70
Published operating point