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Specialized - Thyratron ·Thyratron

7890

Hydrogen thyratron for fast high-voltage, high-current pulse switching in radar modulators, pulse networks, crowbar protection, or related pulsed-power systems.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
B9A
Base pins
4
Nominal heater
6.3 V / -

Description

Large ceramic hydrogen thyratron rated for 40-MW pulse service.

Socket description

Small-button Noval 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B9A
Base pins
4
Nominal heater voltage
6.3 V
Nominal heater current
-
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

Thyratron

X-ray radiationInterelectrode capacitances
Max plate voltage
40000 V

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

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Other

  • Heater voltage

    6.3 V

    Nominal

  • Peak forward anode voltage

    40000 V

  • Peak inverse anode voltage

    40000 V

Characteristic

  • Tube voltage drop

    400 V

  • Anode delay time

    0.5 us

  • Time jitter

    5 ns

Data set 02

1962 ITT

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Characteristic

  • Heater Voltage

    6.3 V

  • Heater Current

    25-35 A

  • Minimum Heating Time

    900 s

Other

  • Maximum Peak Anode Voltage Forward

    40000 V

  • Maximum Peak Anode Voltage Inverse

    40000 V

  • Maximum Peak Anode Current

    2400 A

  • Maximum Average Anode Current

    2.6 A

  • Maximum RMS Anode Current

    15 A

  • Maximum Anode Current Rate of Rise

    10000 A/us

  • Maximum Anode Delay Time

    1 us