Leitch CSD-5300 Clock System Driver (1991)

In the mid-1980s, Canadian broadcast equipment manufacturer Leitch Video was developing a master clock driver which could set itself by making a telephone call to another unit using its built-in modem. At the same time, the National Research Council of Canada was devising plans of a network of clocks which could synchronize each other and disseminate time via the telephone network. The two entities teamed up to create the Leitch CSD-5300, an intersection of timekeeping, broadcast video, and telephony that I think is rather beautiful. This is the history and a demonstration of said system. As mentioned in the video (beginning at 1:37:23), I am making this CSD-5300 available to call, realizing, in my own little way, the NRC's original goal of a nationwide network of CSDs that could provide time at local numbers. There are two numbers, the first based in Michigan, USA at (989) CSD-TIME ((989) 273-8463), and the second based in New Brunswick, Canada at (506) 408-0067. If you call using a