Es ist nicht immer leicht, amerikanische Geschichte zu verdauen. Immer ist eingerüttelt Maß an Lokalpatriotismus dabei. Man könnte das ja als die verklärte Wahrheit der alten Dabeigewesenen betrachten, so wie bei uns hier manche Zeitzeugengeschichte erst noch mal verifiziert werden muß.
Doch diese Dokumente stammen aber aus den 50er und 60er Jahren, also nichts mit Umnachtung oder Verklärug, das war offensichtlich so gewünscht oder erwünscht oder in Amerika ganz einfach normal.
Zum Verstehen kommt im nachfolgenden Absatz das Original (auch in englischer Sprache), so wie es 1960 publiziert wurde:
FIRST MAGNETIC RECORDER patented in the United States. Having developed, exhibited, and patented a magnetic wire recorder in Europe, Valdemar Poulsen was granted a United States patent on his Telegraphone. Output was very low with poor signal-to-noise ratio.
FIRST DC BIAS patented in the United States. Poulsen and Pedersen had found that pre-magnetizing the wire in their Telegraphone recorder with a direct current would yield increased output but with a low signal-to-noise ratio.
FIRST AC BIAS patented in the United States. During their work on magnetic recording techniques in a U.S. Navy laboratory Carlson and Carpenter had discovered that alternating current bias was in every way superior to direct current pre-magnetization.
FIRST MAGNETIC TAPE RECORDER introduced in Europe. The first magnetic tape recorder was introduced using iron oxide coating impregnated in non-metallic plastic film or paper base. All previous models of magnetic recorders had used steel wire, steel ribbon, or plated metallic ribbon.
UNITED STATES FIRST MAGNETIC TAPE RECORDER (AMPEX MODEL 200). Magnetic recorder production in the U.S. prior to this year had utilized steel wire or coated metal ribbon.
INSTRUMENTATION RECORDERS INTRODUCED (AMPEX MODEL 300). Custom adaptations of professional audio tape recorders to instrumentation requirements.
100% INSTRUMENTATION TAPE RECORDER (AMPEX MODEL FR-100). Conceived, designed and built expressly for instrumentation requirements. Modular signal electronics permitted simple plug-in modules to suit any instrumentation application.
COMPUTER ORIENTED TAPE HANDLER (AMPEX MODEL FR-200). Provided a superior storage capacity and a more rapid transfer of data than punched cards or punched tape.
VIDEOTAPE RECORDER (AMPEX MODEL VR-1000). Provided immediate record/reproduce of a video camera output or composite video signal.
BROAD BAND INSTRUMENTATION TAPE RECORDER (AMPEX MODELS FR-700 and AR-300). Provides recording/reproducing of two channels of 10 cycle to h me information.