Non-destructive test equipment, namely, electronic inspection devices for locating and sizing defects, flaws and discontinuities in materials, namely, metals, plastics and composite, by means of ultrasound, eddy current, and other nondestructive signals and currents, for use with welding, pressure vessels, boiler tubes, pipes, pipelines, corrosion-resistant alloys, cladded materials, corrosion mapping, high temperature hydrogen attack inspection, detection of stepwise cracking, composite inspection, and flaw imaging.