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Dear bulletin board members, The MRC Mitochondrial Biology Unit in Cambridge, UK, has a Maatel HC1c humidity controller, together with the ancilliary components necessary to make a crystal dehydration rig, including a Nikon SMZ800 microscope, that is now surplus to our requirements and available free of charge (the new owner would be asked to pay for shipping). This was purchased in 2010, last used in approximately 2017 and is thought to be a working system. Please direct any enquiries to David Pate, MBU Laboratory Manager, [email protected]. Best wishes, Jonathan Ruprecht -- Dr Jonathan Ruprecht MRC Mitochondrial Biology Unit University of Cambridge Keith Peters Building Cambridge Biomedical Campus Hills Road Cambridge CB2 0XY