This 1960-70’s Era Distortion Measuring Unit SI 452 is a untested item of high-quality analog device produced by J.E. Sugden & Co. LTD in the United Kingdom. This vintage 1967 era unit is not a tested unit and is specifically designed to measure distortion levels in many types of instruments. With its compact size and easy-to-use functionality, the SI 452 is a valuable tool for many technicians or musicians looking to achieve a perfect sound with minimal distortion. Whether you are a professional in electronics or a musician or a beginner looking to enhance the perfection, this unit provides accurate measurements and insights to help you achieve your desired level of distortion. Likely used in analysis or for signal processing or testing processes in high frequencies of audio equipment. PLEASE NOTE THIS ITEM IS UNTESTED AND NOT ELIGIBLE FOR A REFUND/RETURN.

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