> Here are 3 Hewlett Packard appnotes that are in the same vain as the > NBS 140 booklet. In many ways these HP items are better written. The > first one was written in 1961. The second one is an update (1974), as > is the third (1976). Each are different and equally worth having on > the shelf.
Speaking of neat old publications... It was probably in the late 70s that a friend showed me a small booklet from NBS. It was describing how to use TV signals to calibrate your local clock. I think NBC and HP cooperated. I think the story was that NBC had their whole network of TV stations locked to a master clock. It was very stable except for jumps when the phone company rewired some link. I think they used to measure various sites monthly and publish the differences between local tick and correct time. Does anybody remember that one? -- These are my opinions, not necessarily my employer's. I hate spam. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
