25 Hz power (DC too)

[wb5mmb]

25 Hz almost but not yet gone.
see page 21 of 24.
  http://www.ieso.ca/imoweb/pubs/marketReports/ORO_Report-2007-2-1.pdf

Last DC service gone?
  http://cityroom.blogs.nytimes.com/2007/11/14/off-goes-the-power-current-started-by-thomas-edison/

40Hz ? ( we need a IEEE member to give us a report on this article, 
Hydro plant in NY state running 40 Hz generators )
  ieeexplore.ieee.org/iel5/2943/4042157/04042167.pdf   youtube 
http://www.youtube.com/watch?v=zmhXNRhNNDI

    Sandy
   WB5MMB