AmpliTech Announces an Increase of 80% in Booked Purchase Orders Over Last Year. New York, Oct. 9, 2013 (GLOBE NEWSWIRE) -- AmpliTech Group, Inc. (OTC QB: AMPG) ("AmpliTech" or the "Company"), a trusted provider of RF/microwave, microelectronic, MMIC, and low noise amplifiers for...