For those who have asked, the patent I referred to is U.S. Patent #3,891,934
dated June 24, 1975. Please go to the IBM Patent Server Home Page
www.patents.ibm.com <http://www.patents.ibm.com> where you can consult
this, and other, patents.
For Carl, KM1H: I have also the schematics for Rohde&Schwarz EK070 receiver,
which I can scan and send it to you via E-mail, if requested.
73 de Mike, YO3CTK
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