321- Encyclopedia of Electronic Circuits, Volume 5 Rudolf Graf, William Sheets, "Encyclopedia of Electronic Circuits, Volume 5" McGraw-Hill/TAB Electronics; 1 edition (August 1, 1994) | ISBN-10: 0070110778 | 768 Pages | PDF | 23,5 MB
 322- Encyclopedia of Electronic Circuits, Volume 6 Rudolf Graf, "Encyclopedia of Electronic Circuits, Volume 6" McGraw-Hill/TAB Electronics; 1 edition (April 1, 1996) | ISBN-10: 0070112762 | 789 Pages | PDF | 24,1 MB  link : rapidshare 4shared
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