It seems like everyone thinks they can build baluns ... and they make all sorts of incredible claims to prove it. We don't make claims, we print specifications. Most commercially produced baluns are Voltage- type baluns. The Current-type balunâ¢ is superior to simple 'Voltage-type' baluns in several ways. The most important are better output balance and higher feedline-to-antenna isolation.
he identity of the creator of the first map is unknown. The first recorded maps were discovered around the ancient city of Babylon. The maps were created on clay tablets aroun â¦ d 2300 B.C. Gerardus Mercator of Belgium is credited with publishing the first map used for nautical navigation in 1569.
1 sec. read this: William Strata Smith (1769-1839), employed by the English coal mining industry, developed the first accurate geologic map of England. He also, from his extensive travels, developed that Principle of Biological Succession.