Closed-Cycle Cryostat
PartCools the sample below 77 K without liquid helium to measure transitions between about 4 K and 77 K. A two-stage Gifford-McMahon cold head reaching 10 K or 4 K with the sample in vacuum, a feedthrough for eight or more leads and cooling water if the compressor needs it. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.