The HP/Agilent X870A WR90 Waveguide Slide Screw Tuner is a precision-engineered component designed to be used in waveguide systems for testing and measurement purposes. Manufactured by HP, a reputable brand in the industry, this tuner allows for fine-tuning of waveguide slides with a screw mechanism, providing accurate and reliable results in a variety of industrial and laboratory settings. Its high-quality construction and compatibility with WR90 waveguides make it a valuable tool for ensuring proper performance and functionality in waveguide-based applications.  Excellent condition and very clean.  Location WG12