Walton John

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Jack Walton became involved in things electronic at an early age.  His first audio design used a carbon microphone, flashlight batteries and a loudspeaker borrowed from the family radio for a PA system when he was in second grade.  The idea seemed to have originated with the popular TV-series “Mr. Wizard” in the late 1950’s.  Erector Sets, Porter Chemistry Kits, Remco crystal radios and Lionel Trains were the toys of his youth.  For years he was very active in amateur radio, building v.h.f. transmitting and receiving equipment, modifying military surplus gear for use to 1296MHz. The audio bug bit seriously when he heard a recording of Anna Moffo performing “Chi il bel sogno di Doretta” from Puccini’s La Rondine on his uncle’s Koss headphones, and he’s been progressively optimizing other people’s wares for over 40 years. Jack has written 3 articles for AudioXpress, including a micro-controller vacuum tube curve tracer and 2 amplifiers. Jack is an entrepreneur with a background in chemistry and physics, having started companies in securities trading, credit derivatives, computer services and UV-cured coating resins. His educational background consisted of 8 years of Dominican nuns, 8 years of Jesuits and 8 years of Goldman Sachs, with time off to gather an MBA at The University of Chicago. No stranger to disappointment, he has been an avid fan of the Cleveland Indians and Browns his entire life.  He and his wife are the proud parents of 3 sons, reside in New Jersey and travel extensively in the U.S. and Europe. 

Written articles
A comparative overview of power supply regulator designs with listening tests

Power supply regulators for low power audio circuits have always been a source of controversy. Although technically almost flawless, there have been persistent reports about audible differences...