44913H-001:WR15 Harmonic Mixer, Lo Frequency 8-12 GHz, RF 50-75Ghz. Although items need to be cleaned , we do not want to touch them as we do want to damage them. All fully guaranteed to work! Coming from a now closed military contractor............... The item "Hughes Aircraft Microwave Components HARD TO FIND Lot of 3" is in sale since Sunday, August 11, 2013.This item is in the category "Business & Industrial\Test, Measurement & Inspection\Test Equipment Parts & Accessories\Test Equipment Waveguides". The seller is "partsplusmore805" and is located in Coarsegold, California. This item can be shipped worldwide.