Stereo 8

From old records, to reel to reel, to 8-track cassetts, to cassett tape's, to CD's, and then to digital mp3's and so on.
Does many of us even remember or even know of the old 8-tack cassett tape's. Stereo 8, commonly known as the eight-track cartridge, eight-track tape, or eight-track, is a magnetic tape sound recording technology, popular from the mid-1960s to the early 1980s, Stereo 8 was created in 1964 by a consortium led by Bill Lear of Lear Jet Corporation, along with Ampex, Ford Motor Company, General Motors, Motorola and RCA Victor Records (RCA). It was a further development of the similar Stereo-Pak four-track cartridge created by Earl "Madman" Muntz. A later quadraphonic version of the format was known as Quad 8 or Q8. The endless loop tape cartridge was first designed in 1952 by Bernard Cousino around a single reel carrying a continuous loop of standard 1/4-inch, plastic, oxide-coated recording tape running at 3.75 in.(9.5 cm) per second. Program starts and stops were signaled by a one-inch-long metal foil that activates the track-change sensor. Bill Lear had tried to create an endless-loop wire recorder in the 1940s, but gave up in 1946, even though endless-loop 8 mm film cartridges were already in use for him to copy from. He would be inspired by Earl Muntz's four-track design in the early 1960s. The Lear Jet Stereo 8 track cartridge was designed by Ralph Miller, who still has the original in his garage, and credit was taken for it by Bill Lear in 1964.