This Laboratory Manual is intended to accompany Adel Sedra and KC Smith's now-classic Microelectronic circuits, 4/e. It has been thoroughly revised to make it more accessible, trimmer and easier to use. It is designed especially for use by those students who use Microelectronic Circuits, 4/e. Their underlying philosophy complements this text by allowing students to "learn-by-doing" or explore the realm of real-world engineering based on the material from the main text. The equipment necessary to undertake the experiments is consciously kept at a minimum in order to take into account the possibility that poor resources may exist. The entire contents of the previous edition's lab manual is available via the WWW at: http://www.sedrasmith.org/