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Specialized - Thyratron ·Thyratron

5696

Industrial gas-tetrode thyratron for counter and relay applications. Grid-controlled gas discharge provides electronic switching and control.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
7BN
Socket code
B7G
Base pins
7
Nominal heater
6.3 V / 150 mA

Description

Industrial gas-tetrode thyratron used in counter-circuit and relay applications. 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
7BN
Socket code
B7G
Base pins
7
Nominal heater voltage
6.3 V
Nominal heater current
150 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

7BN - Terminal pinout

Electrical assignments shared by every tube using this base designation.

TerminalSectionConnectionEvidence
PIN1G1AG1 — Control Grid

EIA chart transcription; independent manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 128, 7BN

PIN2KAK — Cathode

EIA chart transcription; independent manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 128, 7BN

PIN3H—H — Heater

EIA chart transcription; independent manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 128, 7BN

PIN4H—H — Heater

EIA chart transcription; independent manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 128, 7BN

PIN5G2AG2 — Screen Grid

EIA chart transcription; independent manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 128, 7BN

PIN6PAP — Plate (Anode)

EIA chart transcription; independent manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 128, 7BN

PIN7G2AG2 — Screen Grid

EIA chart transcription; independent manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 128, 7BN

Section ratings

1 physical section, each with unique specifications.

Section 1

Thyratron

X-ray radiationInterelectrode capacitances
Max plate voltage
500 V
Max cathode current
100 mA
Rectifier forward voltage drop
10 V
Rectifier warm-up time
10 s

Published ratings and characteristics promoted where unambiguous; additional source values preserved 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

1940 RCA

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Application

  • Application

    Relay_Counter_Control text

Data set 02

1953 RFT Rundfunk Technik

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Other

  • U_f

    6.3 V

    U_f 6,3 V 8

  • Ui

    11 V

    Ui 11 V

  • Uz

    40 V

    Uz 40 V

  • Cg1/a ca

    0.05 pF

    Cg1/a ca. 0,05 pF Fassung: 7-10, TGL 11607

  • J a8 max

    500 V

    J a8 max. 500 V maX. 10 v

  • Eks max

    100 mA

    Eks max. 100 mA maX. 100 kOhm 3)

  • Di. max

    25 mA

    Di. max. 25 mA MmaX. 30 5

  • U g1 max

    100 v

    U g1 max. 100 v 2)

  • 1 mMaX

    100 V

    1 mMaX. 100 V

  • U 18 MaX

    10 V

    -U 18 MaX. 10 V maX. 25 V

  • x1 MAaX

    5 mA

    x1 MAaX. 5 mA MaXe 90 °

  • R mM8aX

    10 MOhm

    R mM8aX. 10 MOhm maX. 30 °

  • PublishedValue

    1 v

    1 v 1)

  • Ug

    2 S

    -Ug2 S MAX . 50

  • Zündkennlinien-Streubereiche bei 4 =

    0.1 MOhm

    Zündkennlinien-Streubereiche bei 4 = 0,1 MOhm und Ry4 = 10 MOhm,

  • oder Überheizung (

    6.9 V

    oder Überheizung (6,9 V) auftreten können.

Data set 03

1960 RCA Industrial and Communications Types

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Application

  • Application

    Relay control

Data set 04

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Other

  • Heater voltage

    6.3 V

    Nominal

  • Heater current

    150 mA

    Nominal

  • Maximum cathode current

    100 mA

Characteristic

  • Minimum cathode heating time

    10 s

Capacitance

  • Anode-to-control-grid capacitance

    0.03 pF

Data set 05

1963 Philips Electron Tubes Handbook V3

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Characteristic

  • Warmup time minimum

    10 s

    Thyratron

  • Arc voltage drop

    10 V

    Thyratron

  • Anode-to-grid-1 striking ratio

    250

    Thyratron

  • Anode-to-grid-2 striking ratio

    15

    Thyratron

  • Critical grid-1 current

    0.5 µA

    Thyratron

  • Deionization time

    40 µs

    RecoveryTest

Other

  • Recovery-test anode voltage

    500 V

    RecoveryTest

  • Recovery-test peak cathode current

    100 mA

    RecoveryTest

  • Pulse duration

    20 µs

    RecoveryTest

  • Grid-1 voltage

    -50 V

    RecoveryTest

  • Peak forward anode voltage maximum

    500 V

    Section1

  • Peak inverse anode voltage maximum

    500 V

    Section1

  • Peak cathode current maximum

    100 mA

    Section1

  • Surge cathode current maximum

    2 A

    Section1

  • Ambient temperature range

    -55 to +90 °C

    Section1

Data set 06

1966 Tung Sol Electronic Tubes 3 of 4

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Other

  • Peak inverse anode voltage

    500 V

    Switching

  • Peak forward anode voltage

    500 V

    Switching

  • Peak cathode current

    100 mA

    Switching

  • Average cathode current

    25 mA

    Switching

  • Surge cathode current

    2 A

    0.1Second

Characteristic

  • Anode voltage drop

    10 V

  • Critical grid current

    0.5 uA

    Ebb=350Vrms

  • Minimum cathode heating time

    10 s

  • De-ionization time

    25 us

    Grid=-100V

  • De-ionization time

    40 us

    LowNegativeGridVoltage

  • Ionization time

    0.5 us

Capacitance

  • Anode-to-control-grid capacitance

    0.03 pF

  • Control-grid-to-cathode capacitance

    1.8 pF

    ShieldGridIncluded

Data set 07

1971 RCA HB3 Binder 2 of 7

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Other

  • Peak forward anode voltage

    500 V

  • Peak inverse anode voltage

    500 V

  • Peak cathode/anode current

    100 mA

  • Average cathode/anode current

    25 mA

  • Fault or surge current

    2 A

    ShortDuration

  • Peak heater-cathode voltage heater negative

    100 V

  • Peak heater-cathode voltage heater positive

    25 V

  • Ambient temperature range

    -55 to +90 C

  • Heater voltage

    6.3 V

  • Heater current

    150 mA

  • Relay-service RMS anode voltage

    117 V

    RelayService

Characteristic

  • Ionization time

    0.5 us

    Approximate

  • Deionization time

    25 us

    Approximate

  • Anode voltage drop

    10 V

    Conducting

  • Grid No.2 control ratio

    15

  • Grid No.1 control ratio

    250

Construction

  • Gas fill

    Gas

Capacitance

  • Grid-to-anode capacitance

    0.03 pF

    Approximate

  • Grid-to-cathode capacitance

    1.6 pF

    Approximate

Data set 08

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Other

  • Peak forward anode voltage

    500 V

    RelayService

  • Peak inverse anode voltage

    500 V

    RelayService

  • Peak cathode current

    100 mA

    RelayService

  • Average cathode current

    25 mA

    RelayService

  • Surge cathode current

    2 A

    0.1Second

Characteristic

  • Anode voltage drop

    10 V

  • Ionization time

    0.5 us

Capacitance

  • Grid No.1 to anode capacitance

    0.03 pF

  • Input capacitance

    1.8 pF

  • Output capacitance

    0.54 pF

Data set 09

1999 Philips 0-D

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Characteristics

  • Heater voltage

    6.3 V

  • Heater current

    150 mA

  • Anode arc voltage

    15 V

  • Recovery time

    40 us

    Va=500V;Ikp=100mA

  • Minimum heater warmup time

    10 sec

Construction

  • Filling

    Inert gas

Other

  • Maximum anode voltage

    500 V

  • Maximum surge current

    100 mA

    Duration<=0.1s