On Thu, 13 Dec 2012 13:41:44 +0000, Mike Tomlinson
wrote:


Posted in another group:

http://imageshack.us/photo/my-images...tonowhere.jpg/

what are these tracks for?

Replied in another group (diy)

It is a pcb "test coupon" - used them loads of times either on the pcb
or just outside the board edge so that the stack can be tested before
breaking out the board.
Explanation and expoded diagram he-
http://www.polarinstruments.com/support/cits/AP124.html