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Rectifier - Full Wave ·Rectifier-Rectifier

5C8S

High-current Russian double-anode indirectly heated kenotron for AC-to-DC power conversion. Its 5 V heater supports approximately 420 mA DC output and substantial peak-current capability.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: -
Socket code: IO
Base pins: 8
Nominal heater: 5 V / 5 A

Description

The 5C8S is a double-anode indirectly heated kenotron for AC rectification.

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: 5 V
Nominal heater current: 5 A
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

Rectifier

X-ray radiationInterelectrode capacitances

Max plate dissipation: 30 W
Rectifier peak inverse voltage: 1700 V
Rectifier nominal output current: 420 mA
Rectifier peak forward current: 1.2 A

Electrical values extracted only from the filename-designated tube block; page-edge fragments excluded.

Section 2

Rectifier

X-ray radiationInterelectrode capacitances

Max plate dissipation: 30 W
Rectifier peak inverse voltage: 1700 V
Rectifier nominal output current: 420 mA
Rectifier peak forward current: 1.2 A

Second physical rectifier section; promoted electrical properties populated from identical section.

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

Rectifier

Other

Rectified current
400 mA
2 x 500 V AC
Maximum inverse voltage
1700 V
Peak
Maximum rectified current
420 mA
Average
Maximum peak anode current
1.2 A
Published limit
Maximum anode-current surge
5 A
At switching
Maximum anode dissipation
30 W
Published limit

SECTION 2

Rectifier

Other

Rectified current
400 mA
2 x 500 V AC
Maximum inverse voltage
1700 V
Peak
Maximum rectified current
420 mA
Average
Maximum peak anode current
1.2 A
Published limit
Maximum anode-current surge
5 A
At switching

Data set 02

1981 Russian Tubes Katsnelson and Larionov

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Characteristics

Plate current
>300 mA
Ток анода (при [}(‚—_75 В) й > 300 мА
Rectified current
500 V
Выпрямленный ток (при /4==500 В !?в-—і кОм С=
Service life
>1000 h
Наработка.‚...—........... >> 1000 ч
Rectified current
>360 mA
выпрямленный ТОК . , . ё ва . , 2>360 мА
Rectified current
420 mA
Выпрямленный ток (среднее значение) оее 420 мА
Plate current
1.2 mA
Ток анода (амплитудное значение). , . . , ., , 1,2 мА

Other

Reverse voltage
17 КВ
Обратное напряжение к оао 17 КВ

SECTION 2

Rectifier

Characteristics

Plate current
>300 mA
Ток анода (при [}(‚—_75 В) й > 300 мА
Rectified current
500 V
Выпрямленный ток (при /4==500 В !?в-—і кОм С=
Service life
>1000 h
Наработка.‚...—........... >> 1000 ч
Rectified current
>360 mA
выпрямленный ТОК . , . ё ва . , 2>360 мА

Other

Reverse voltage
17 КВ
Обратное напряжение к оао 17 КВ