http://www.allaboutcircuits.com/vol_1/chpt_6/2.html

The 2nd diagram on the page shows an explanation of what is meant by the meaning of Ecd. However, the text right above the diagram says the specified voltage is Ecg. It then goes on to say that it would be the voltage measured with the red test lead on "c" and the black test lead on "g". So the text part can be changed to Ecd or the diagram part can be changed to Ecg. He'll have to change 2 things in either section no matter which way he chooses to do it. =)

 

Professor Thom,

Thanks for pointing out this error.
The correction has been enetered in the master copy at ibiblio.org

Dennis Crunkilton