In a message dated 1/13/2007 4:22:33 P.M. Pacific Standard Time, barry at barrykasindorf.com writes: If anyone is in the San Francisco area, there is a really nice exhibit on the history of sound at the airport ================= It is indeed a nice exhibit, sponsored by Dolby and including a lot of their prototype materials. There are a few of my machines on display. Unfortunately the exhibit is behind the security line so only those people with tickets on United can see it, but according to airport officials that amounts to 100,000 people a day... Best regards, Rene Rondeau