On Wed,7/1/2015 2:13 PM, Fred Townsend wrote:
Years ago I wrote the author of a QST published construction article pointing out an error. He sent me his original schematic. QST had redrawn his schematic using multiple ground busses using the pitchfork ground symbol and thereby combining busses.
Their redrawing a perfect example of the muddy thinking about signal common (what we call "ground" in a circuit). In his EMC classes, guru Henry Ott, WA2IRQ, emphasizes the importance of knowing where the return current is flowing -- he talks about the hidden schematic concealed by the ground symbol.
73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
