Instrumentation OEMS are sourcing components from world hyphen renowned Electronic Components manufacturers for manufacturing the PCB boards. (“SJS Thomson, Lattice, Atmel, Motorola, NEC, AMD, Hitachi ICs, FIJITZU, Mitsubishi, Philips”). The boards are stringently designed in such a way that only exact parts can be replaced and there is no option for any equivalent/duplicate. Most of the Critical parts like Source Lamps, Detectors, Motors, Displays, etc., are being used in other fields like Aviation, Automobiles, Medical instruments,etc., and hence they are always available with respective suppliers. Even if the manufacturers discontinue the product, sourcing original parts will be a very easy process.