XPost: sci.electronics.design   
      
   Tom Del Rosso wrote:   
   >John Larkin wrote:   
   >>   
   >> We were on the roof yesterday and speculated how cool it would be if   
   >> we could see RF, all the microwaves and cell phones and wifis and   
   >> transmitters. That's not possible. But a surface potential map is.   
   >   
   >I've often thought of that.  You'd need eyes bigger than Zoey Daschanel   
   >and Irene Bordoni combined.   
   >   
   >You know that famous chaotic function that can be modelled with a   
   >circuit of 2 multipliers and fed into a scope in XY mode to produce a   
   >pair of spirals?  There's a complete circuit on Paul Horowitz's website.   
   >I might have made one for fun if the multipliers weren't $20 each.   
   >   
   >Well, it would also be neat to put one in the cabinet under that old   
   >scope in your lobby.   
      
   You can display anything you want on a XYZ scope:   
    http://panteltje.com/panteltje/scope_tv/index.html   
   with just a few transistors, even TV.   
      
   --- SoupGate-Win32 v1.05   
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