Raymond A Mack Author

Raymond A. Mack, W5IFS, received his Electrical Engineering degree, with emphasis on biomedical engineering, from Purdue University in 1975. His career in medical devices covered clinical chemistry analyzers, heart pacemakers, electro-surgery, and infant warming therapy. From 1999 he worked in digital television for eight years and is now working in the oil and gas industry at National Oilwell Varco. Ray has worked for QEX magazine for 12 years as a technical proofreader, editor, writes a column on software defined radio, and has authored Switching Power Supplies Demystified. Ray's interests include alternative energy using switching power design, microwave system design, software defined radio, and DSP. Jerry Sevick, W2FMI - renowned for his research and publications related to short vertical antennas and transmission line transformers - passed away in 2009. Jerry was a graduate of Wayne State University and later graduated from Harvard University with a doctorate in Applied Physics. In 1956, he joined AT&T Bell Laboratories and supervised groups working in high-frequency transistor and integrated-circuit engineering; later, he served as Director of Technical Relations at the company. During his career, he undertook the characterization and design of transformers for low impedance applications, resulting in this book, originally published in 1987.