Elefant kompensieren Tonhöhe magnetic wire recording Absondern Briefmarke Memo
Massimo on Twitter: "71 years ago #Today, the first magnetic tape recorder was introduced by Wire Recording Corporation of America. 'Wire Way,' as it was called, had an integrated oscillator and was
Wire Recorders - Museum of Magnetic Sound Recording
Recording on a Wire | Science Project
What audio recording medium/technology was available to consumers in 1949 for long recordings of over an hour? - Quora