Has anyone here ever done any work with cryogenic circuits? The application is some ultra low noise amplifiers.
Does anyone know of which houses can make PCB's based on Ceramic Substrate Material? Would there be something better material to use in Liquid Nitrogen than Ceramic? http://www.interfet.com/ makes low noise parts for this kind of work, anyone know of other obscure companies? _______________________________________________ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user