Control-screen electrode subassembly for an electron gun and method for constructing the same

摘要

The present invention is an improvement in an electron gun for use in a cathode-ray tube. Such a gun includes a cathode assembly and at least two spaced successive electrodes having aligned electron beam apertures therein. The improvement comprises one of the two electrodes having a plurality of alignment apertures disposed around the periphery thereof. A plurality of insulative support assemblies are referenced to the plurality of alignment apertures and interconnected to the one electrode. Each of the support assemblies also includes at least one support plate having a locating portion which is attached to the other electrode. A method is disclosed for aligning the electron beam apertures of the two successive electrodes.