Skip to main content
Tube Tinker — Electron Tube Database
Alternatives & variationsDownload PDF datasheet

Specialized - Switching Tube ·Thyratron

0A5

Cold-cathode gas-discharge electronic switch. Ionization provides abrupt heaterless conduction for trigger and control circuits.

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

Description

The Sylvania 0A5 is a gas-filled grid-controlled electronic switching tube for pulse-triggered discharge circuits.

Socket description

Miniature 7-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B7G
Base pins
-
Nominal heater voltage
-
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
1500 V
Max cathode current
10 A

Grid-controlled gas-discharge switching 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

1965 Sylvania Electronic Tubes Vol3

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Other

  • Minimum Anode Voltage

    500 V

  • Maximum Anode Voltage

    1500 V

  • Maximum Shield Grid Voltage

    1000 V

  • Maximum Trigger Grid Negative Voltage

    -180 V

  • Maximum Trigger Grid Positive Voltage

    90 V

  • Maximum Trigger Grid Power Input

    1 W

  • Maximum Peak Cathode Current

    10 A

  • Anode Voltage

    750 V

    ElectronicSwitch

  • Trigger Grid Bias

    90 V

    ElectronicSwitch

  • Trigger Pulse Voltage

    160 V

    ElectronicSwitch

  • Discharge Capacitor

    0.25 uF

    ElectronicSwitch

  • Trigger Current

    50 uA

    ElectronicSwitch

  • Repetition Rate

    1 pps

    Representative

  • Trigger Power

    0.07 W

    Representative