This laboratory manual contains 61 experiments to demonstrate the theory in 'Electronic Principles'. Each experiment begins with a short discussion. Then, the Required Reading lists the sections of the textbook that should be read before you attempt to do the experiment. In the Procedure section, you will build and test one or more circuits. The Troubleshooting and Critical Thinking sections take you into more advanced areas. The Questions at the end of each experiment are a final test of what you have learned during the experiment. Optional sections are included in many experiments. They are to be used at the discretion of the instructor. The Applications sections demonstrate how to use transducers such as buzzers, LEDs, microphones, motors, photoresistors, phototransistors, and speakers. the Additional Work sections include advanced experiments. The Computer section covers work with Electronics Workbench and the CD-ROM version of the textbook. You will find the experiments in this lab manual to be instructive and interesting. The experiments verify and expand the theory presented in 'Electronic Principles'; they make it come alive. When you have completed the experiments, you will have that rounded grasp of theory that can come only from practical experimentation. Thanks to my special consultant, Richard Burchell, of ITT Technical Institute in Portland, Oregon. Again, his advice and suggestions were invaluable in deciding the content and format of this book.