It was the CMRR that blew me away. Something like >= 100dB past 50kHz. That's almost a miracle. With an amp like that, you really could measure the grass growing on top of a skyscraper (with a gain and bandwidth high enough to see it happen even with the wind blowing - or on top of the outdoor elevator)! Marcel Duchamp wrote: > > ps to David Minkler - got a brand new in the box 7A22. 10uVolt/cm > differential inputs - yup, that's a real treasure! > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist