This new text on basic AC/DC circuit theory and the fundamentals of electronics introduces technology students to the design and troubleshooting of modern electronic devices. Every chapter puts the material learned to real world applications, and no other book has such extensive practical coverage - with a heavy emphasis on troubleshooting and the operation of test equipment. The book includes coverage of digital circuitry and microprocessors, and instruction in the composition and operation of multimeters, oscilloscopes and signal sources. Also discussed are complex integrated circuits, electromagnetic interference, circuit timing, static conditions and power line transients. The mathematics employed includes elementary algebra and right triangle trigonometry - and every mathematical concept used in the book is developed and reviewed so that students with weak math backgrounds can learn (or relearn) the necessary math in the context of electrical concepts. Many examples and exercises are contained in this well illustrated text.