Thurlby Thandar Instruments Ltd, trading as AIM-TTi, is a leading British manufacturer of electronic test and measurement instruments. Founded in 1979 and headquartered in Huntingdon, Cambridgeshire, UK, the company has built a strong reputation for precision engineering. It specializes in designing and producing precision power supplies, function generators, arbitrary waveform generators, digital multimeters, RF test equipment, and programmable instruments. Core product lines include the PL Series precision linear DC power supplies, the QPX Series high-power DC power supplies, the MX and QL Series mixed-mode power supplies, and the TG Series function/arbitrary generators. AIM-TTi's TGR Series arbitrary waveform generators offer advanced signal simulation capabilities, while the 1908 Series precision digital multimeters provide high-accuracy measurements. The company also offers RF signal generators and spectrum analyzers, as well as USB and LAN-controlled programmable instruments for automated testing systems. AIM-TTi is recognized for its high-quality engineering, competitive pricing, and extensive application in R&D laboratories, education, and industrial manufacturing across the globe. Its products are distributed internationally through a network of authorized partners, serving customers in Europe, North America, Asia, and beyond. With a strong emphasis on innovation, AIM-TTi continues to expand its product portfolio to meet the evolving needs of electronics test and measurement.