[R-390] Updated SP 600 Article

Perry Sandeen via R-390 r-390 at mailman.qth.net
Thu Nov 20 23:53:20 EST 2014


List,


 
Our beloved sister receiver to the *A* is of course theHammarlund SP 600.


 
In 1990 Bill Kleronomos, KD0HG (SK) wrote a three partarticle called *Update that Super-Pro* where he listed a number cures forvarious problems. It was originally published in ER magazine in 1990.


 
It included a SSB circuit as well as tests using more moderntubes.


 
I OCR’d the 2nd and 3rd parts and have included a modifiedversion of the original LM 1496 SSB circuit. I believe it to be a bettercircuit as it incorporates some additional parts so that the input signalvoltages are the right amplitude for the chips specifications.


 
If any wish a PDF copy, please send me an ORIGINAL email. Thisavoids problems with Yahooey mail.


 
Regards,


 
Perrier

SandeenpaXXatXXyahoo.com.


 



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