indicator gate

indicator gate

[′in·də‚kād·ər ‚gāt]
(electronics)
Rectangular voltage waveform which is applied to the grid or cathode circuit of an indicator cathode-ray tube to sensitize or desensitize it during a desired portion of the operating cycle.
References in periodicals archive ?
The Tyco OS&Y and Non-Rising Stem Post Indicator Gate Valves offer several key benefits compared to other alternative approaches: