CRTs

GD' Tronics - - Design and market monitors ranging from open frame monitors to industrial, marine and multimedia monitors.

Lexel Imaging Systems, Inc. - - Cathode Ray Tube (CRT) manufacturer for industrial, commercial and military display applications.

North American Imaging - - Manufacturer of medical and industrial x-ray tubes, image intensifiers, CT units, DICOM ultrasound, camera systems, and high-voltage cables for equipment manufacturers, re-manufacturers, service organizations, and end users.

Princeton Display, Inc. - - Distributor of cathode ray tubes and other display components.

Video Display Corporation - - Manufactures and distributes cathode ray tubes for use in television sets and data display screens and manufactures electron guns. (Nasdaq: VIDE).