EOI Hetherington (Santa Barbara, Calif.), a manufacturer of high-temperature, high-vacuum processing systems, shipped a Model B2500V furnace to General Electric Medical Systems (Milwaukee, Wis.). The furnace is the latest in a series of units that provide high-temperature processing systems for brazing x-ray detectors used in General Electric's CAT (Computerized Axial Tomography) Scan Systems. EOI Hetherington is a division of Electro Optical Industries, Inc., which is one of seven entities that comprise Channel Technologies, Inc.