00813nam a2200193Ia 4500 CTU_219540 210402s9999 xx 000 0 und d 621.3841524 S243 Sarbacher, Robert Irving Hyper and ultrahigh frequency engineering Robert Irving Sarbacher, William A. Edson New York Wiley 1950 Many of the earliest books, particularly those dating back to the 1900s and before, are now extremely scarce and increasingly expensive. We are republishing many of these classic works in affordable, high quality, modern editions, using the original text and artwork Electric waves,Sóng điện Trúc Trung tâm Học liệu Trường Đại học Cần Thơ