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Specialized - Switching Tube ·Thyratron

5823

Industrial cold-cathode glow-discharge triode for relay-control service in low-current on/off circuits. It provides heaterless electronic switching.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
4CK
Socket code
B7G
Base pins
7
Nominal heater
-

Description

Industrial cold-cathode glow-discharge triode for relay-control service in low-current on/off circuits. Extracted from the supplied RCA Receiving Tube Manual excerpt.

Socket description

Miniature 7-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
4CK
Socket code
B7G
Base pins
7
Nominal heater voltage
-
Nominal heater current
-
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

4CK - Terminal pinout

Electrical assignments shared by every tube using this base designation.

TerminalSectionConnectionEvidence
PIN1PAP — Plate (Anode)

EIA chart transcription; independent manufacturer corroboration pending

Unverified

EIA Base Connections, printed page 127, 4CK

PIN2IC—IC

EIA chart transcription; independent manufacturer corroboration pending

Unverified

EIA Base Connections, printed page 127, 4CK

PIN3KAK — Cathode

EIA chart transcription; independent manufacturer corroboration pending

Unverified

EIA Base Connections, printed page 127, 4CK

PIN4G1AG1 — Control Grid

EIA chart transcription; independent manufacturer corroboration pending

Unverified

EIA Base Connections, printed page 127, 4CK

PIN5IC—IC

EIA chart transcription; independent manufacturer corroboration pending

Unverified

EIA Base Connections, printed page 127, 4CK

PIN6IC—IC

EIA chart transcription; independent manufacturer corroboration pending

Unverified

EIA Base Connections, printed page 127, 4CK

PIN7KAK — Cathode

EIA chart transcription; independent manufacturer corroboration pending

Unverified

EIA Base Connections, printed page 127, 4CK

Section ratings

1 physical section, each with unique specifications.

Section 1

Thyratron

X-ray radiationInterelectrode capacitances
Max plate voltage
200 V
Max cathode current
25 mA
Rectifier forward voltage drop
62 V

Cold-cathode glow-discharge switching triode; trigger/breakdown data in 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

1940 RCA

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Application

  • Application

    RelayControl text

Data set 02

1950 Sylvania

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Other

  • Maximum Plate Voltage

    200 V

  • Maximum Cathode Current

    25 mA

  • Peak Cathode Current

    100 mA

  • Average Cathode Current

    25 mA

Characteristic

  • Starter Triggering Voltage

    50 V

  • Ionization Time

    20 us

  • Deionization Time

    500 us

  • Anode Breakdown Voltage

    290 V

Data set 03

1957 Philips Receiving and Amplifying Tubes

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Other

  • Maximum Anode-Starter Voltage

    180 V

  • Maximum Cathode Current

    25 mA

  • Peak Cathode Current

    100 mA

  • Ambient Temperature Minimum

    -60 degC

  • Ambient Temperature Maximum

    75 degC

Data set 04

1963 Amperex Condensed

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Characteristic

  • Anode voltage minimum

    140 V DC

    ColdCathodeTrigger

  • Anode voltage maximum

    200 V DC

    ColdCathodeTrigger

  • AC anode voltage

    117 V AC

    ColdCathodeTrigger

  • Starter-to-cathode breakdown voltage minimum

    73 V

    ColdCathodeTrigger

  • Starter-to-cathode breakdown voltage maximum

    105 V

    ColdCathodeTrigger

  • Anode-to-cathode breakdown voltage

    >200 V

    ColdCathodeTrigger

Other

  • Maximum load current

    25 mA

    ColdCathodeTrigger

  • Peak load current

    100 mA

    ColdCathodeTrigger

Data set 05

1963 Philips Electron Tubes Handbook V2

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Characteristic

  • Anode ignition voltage at starter 0 V

    290 V

  • Starter ignition voltage variable

    73 to 105 V

  • Starter ignition voltage at anode 0 V

    80 V

  • Anode burning voltage at 50 mA

    85 V

  • Anode maintaining voltage at 25 mA

    62 V

  • Starter maintaining voltage at 10 mA

    75 V

  • Starter maintaining voltage at anode current 25 mA

    61 V

  • Anode-starter breakdown voltage

    200 to - V

    Minimum

  • Starter transfer current

    50 to 400 uA

  • Anode transfer current

    - to 160 uA

    Maximum

  • Ionization time

    20 us

  • Deionization time

    500 us

Other

  • Maximum anode-starter voltage

    - to 180 V

  • Maximum average cathode current

    - to 25 mA

  • Maximum peak cathode current

    - to 100 mA

  • Maximum positive starter peak current

    - to 100 mA

  • Relay-service AC supply voltage

    117 V RMS

    50Hz

  • Maximum peak inverse voltage as rectifier

    - to 200 V

    50Hz

  • Maximum rectifier current

    - to 100 mA

    50Hz

Data set 06

1971 RCA HB3 Binder 2 of 7

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Construction

  • Cathode type

    Cold

Characteristic

  • Ionization time

    20 us

  • Deionization time

    500 us

  • Anode voltage drop

    62 V

  • Starter-electrode voltage drop

    61 V

  • Anode breakdown voltage

    290 V

  • Starter-electrode breakdown voltage

    80 V

  • Required transfer current

    50 uA

    At140VPeak

Other

  • Peak forward anode and starter-electrode voltage

    200 V

  • Peak inverse anode and starter-electrode voltage

    200 V

Data set 07

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Other

  • Peak inverse anode/starter voltage

    200 V

    FirstQuadrant

  • Peak forward anode/starter voltage

    200 V

    FirstQuadrant

  • Peak cathode current

    100 mA

    FirstQuadrant

  • Average cathode current

    25 mA

    FirstQuadrant

  • Peak starter-electrode current

    100 mA

    StarterPositive

  • AC anode supply voltage RMS

    117 V

    RelayService 60Hz

  • Maximum pre-firing starter voltage

    70 V

    RelayService 60Hz

  • Minimum triggering starter voltage

    35 V

    RelayService 60Hz

  • Minimum firing voltage

    105 V

    RelayService 60Hz

Data set 08

1999 Philips 0-D

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Construction

  • Filling

    Gas; cold cathode

Characteristics

  • Typical anode ignition voltage

    290 V

    ControlVoltage=0V

  • Typical starter ignition voltage

    80 V

Other

  • Maximum anode supply voltage

    180 V

  • Maximum cathode current

    25 mA

  • Maximum peak cathode current

    100 mA