So what area of the tube does the external dag cover... I am still not sure that I see it. Note the highly visible pattern here where the external dag can be clearly seen *almost* to the yoke: http://upload.wikimedia.org/wikipedi...17px-Crt14.jpg
jr
Last edited by jr_tech; 10-09-2013 at 03:36 PM.
Reason: add link to pix
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