Hardly a single bit of science in the past 100 years was not touched or enabled by the CRT. Our local PBS has produced a program of the history of Tektronix, it airs Monday: http://www.opb.org/programs/oregonexperience/programs/29-The-Spirit-of-Tek I am sure several of us have some of these boat anchors. I am the proud owner of a 7104, 1GHz scope. Sure, they got into computer graphics with the 4000 series terminals, and the tek protocol for vector graphics became kind of a standard. Enjoy, Randy _________________________________________________________________ The New Busy think 9 to 5 is a cute idea. Combine multiple calendars with Hotmail. http://www.windowslive.com/campaign/thenewbusy?tile=multicalendar&ocid=…