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PC Board Artwork, Rev 4
Here is the artwork required to etch the printed circuit board.
You can buy bare boards, but if you
like etching circuit boards, here are the high resolution images
you will need. This board uses a modest number
of vias, and has 8 mil (0.2 mm) traces, with 8 mil
spacing and
many wires connect on the component side, and the ICs are close
enough together that it is very difficult to solder the top
layer with a socket. Four ICs require PLCC sockets, so insert
pins soldered both sides are needed underneath these PLCC
sockets.
This design and its printed circuit board layout have been placed in the public domain. They are distributed in the hope that they
will be useful, but are provided without any warranty, not even a warranty of merchantability
or fitness for a particular purpose.
These TIFF images are exactly 600 DPI. When printed, the board
size should be 6.00 by 4.01 inches (15.24 by 10.185 cm). Here is a photo
of a bare board:
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