http://www.allaboutcircuits.com/vol_3/chpt_3/11.html#03287.png

first paragraph, last sentence
is
the voltage dropped across the zener diode will remain at approximately 12.6 volts.
should be
the voltage dropped across the zener diode will remain at the Zener volts.

opps, did not pay a close attenstion to the rest of the paragraph.
the above is not a problem.

sorry.

 

http://www.allaboutcircuits.com/vol_3/chpt_2/5.html
The second paragraph on this page refers and links to an absent image "above". (It sounds like one of the images on the previous page, but the link doesn't go anywhere yet.)

 

The image http://sub.allaboutcircuits.com/images/03402.png is at the bottom of this page: http://www.allaboutcircuits.com/vol_3/chpt_2/3.html .

The link works in the ibiblio whole chapter page (and the PDF available at AAC) because it does not have to link to another page. AAC splits the whole chapter into digestible section pages; thus, a link to a different page.

This link http://forum.allaboutcircuits.com/showthread.php?t=24375 provides more details on a similar link.