[R-390] Synchronous Detector Circuit

[Charles Steinmetz]

>Anyone wanting a copy PLEASE send me an original email off list.

This article, as well as many more articles on synchronous detectors 
and other information useful to those interested in designing and/or 
building synchronous detectors, is available in a ZIP file here (~50MB total):

<http://www.ko4bb.com/manuals/download.php?file=06_App_Notes_-_Proceedings/Synchronous_AM_detector_document_collection.zip>

Since I posted that (several years ago), I have accumulated another 
~50MB of synchronous detector-related material, which I will post as 
an addendum.  Real Soon Now.  It will be at the same place 
<http://www.ko4bb.com/manuals/>.  Search for "collection" or 
"synchronous".  [I do not expect that I will get around to it before 
some time next year.]

Best regards,

Charles