Index of /test_equipment/ampex
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   DIR /test_equipment
   DIR brochures
   DIR ES-100
   DIR ES-200
   DIR FR-1300
   DIR FR-3000
   DIR HBR-3000
       McKnight_The_Erase_Process_Jan59.pdf
       The_Tape_Recorder_as_an_Instrumentation_Device_1958.pdf