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

Specialized - Switching Tube ·SwitchingOther

BR11

Cold-cathode high-current switching tube with starter control and auxiliary keep-alive anode, designed for very-high-peak-current pulse switching.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
-
Base pins
9
Nominal heater
-

Description

Cold-cathode high-current switching tube with starter control and auxiliary keep-alive anode for very high peak-current pulse switching.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
-
Base pins
9
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 0

SwitchingOther

X-ray radiationInterelectrode capacitances
Max cathode current
4000 A

Cold-cathode switching/relay/display section; device-specific glow-discharge values preserved in parameter table.

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

1962 Cerberus

Published operating points and test conditions from this source.

SECTION 0

SwitchingOther

Characteristic

  • Anode Breakdown Voltage

    1400 to - V

    Starter connected to cathode through max 100 kOhm

Other

  • Peak Cathode Current

    - to 4000 A

  • DischargeEnergy

    - to 300 J

    Per discharge

  • Anode Supply Voltage

    - to 1200 V

  • AuxiliaryAnodeCurrent

    - to 3 mA