Sapphire chips in an HP-IB controller? https://www.tomshardware.com/pc-components/cpus/transparent-processor-found-in-vintage-hp-computer-silicon-on-sapphire-chip-discovered-on-a-humble-floppy-drive-pcb Let there be peace on earth,-Craig Sent from Yahoo Mail for iPad * To join/leave the list, search archives, change list settings, * * etc., please visit http://raven.utc.edu/archives/hp3000-l.html *