GW Instek began as Good Will Instrument Co., Ltd., in 1975. This brand was the first manufacturer in Taiwan to specialize in electrical measurement and test equipment. The company quickly expanded into GW Instek, a manufacturer of power supplies and high precision instruments. In the last 40 years, GW Instek has grown to produce more than 300 different products, selling to more than 80 countries around the world. Instek is responsible for the manufacture of spectrum analyzers, meters, amplifiers, frequency counters, probes, signal generators, and power supplies. Engineers can find a variety of new, used, and refurbished Instek products at ValueTronics.