On Saturday 13 September 2014 11:03:00 pm Paul Alciatore palciatore@gt.rr.com [Electronics_101] wrote:
  > The 600 Ohm impedance which was 
  > standardized in the early days of AM radio with tube circuits,
  
  I have my doubts about that.  It came from telephone systems,  I think.
  
  What tube circuits have that sort of impedance?  I don't recall any.
  
  -- 
  Member of the toughest, meanest, deadliest, most unrelenting -- and
  ablest -- form of life in this section of space,  a critter that can
  be killed but can't be tamed.  --Robert A. Heinlein, "The Puppet Masters"
  -
  Information is more dangerous than cannon to a society ruled by lies. --James 
  M Dakin
  
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                                   Posted by: "Roy J. Tellason, Sr." <rtellason@gmail.com>
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