Newspapers / Amco News (High Point, … / Aug. 1, 1963, edition 1 / Page 8
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MAC PANEL COMPUTER TAPE WITH|MAGNE-FLO|COATIWG ASSURES A UNIFORMLY CONSISTENT SIGNAL OUTPUT Years of research have gone into the development of a magnetic com* puter tape with physical and magnetic properties second to none. MAC Panel Computer Tape is made with an improved oxide formulation that guarantees all of the critical character* istics of magnetic tape to be used for precision computer applications. This \inique formulation is a combination of proven elements that insure the pres ence and retention of the most critical magnetic properities as well as the three prime physical characteristics: permanent coating adhesion. . .hard shell toughness. . . and flexibility under all conditions. A significant result of MAC Panel's research has been an improved gravure coating technique called "Magne*Flo" coating. Just one of the benefits of this major new production technique is a uniform oxide coating thickness through* out the entire tape width and length. This means an assured vmiformity of signal response from channel to channel, from reel to reel. Particle orientation is accomplish ed while the coating is still fluid to in* sure the highest magnetic efficiency, and a "four zone" drying process sta bilizes the coating evenness to close tolerances established by exhaustive laboratory tests. The finishing stage further guarantees a smooth, hard, defect-free surface. The entire manufacturing process- the improved gravure coating method, ultrasonic cleaning at two stages of production and precise slitting that assures clean-edged accurate tape widths--is all done in MAC Panel'sown modern, specially constructed building with super-sensitive temperature and humidity controls. Pre-production and final testing phases far exceed the normal criterion for attention to detail. Every element used in the oxide formulation is thoroughly tested before and after blending. The oxides are repeatedly checked for magnetic prop erties and particle sice distribution. Also, all production equipment is "^ite-glove" inspected before each run. For final testing, every reelmoves into a fully equipped testing laboratory where it is thoroughly tested. The most advanced testing equipment avail able is used to detect any dropout caus ing imperfection. Signal tests, noise tests, Upe width measurements, skew and friction reading, stress-strain curve measurements, coating stress tests and nuiny other tests are perform ed on special and general purpose elec tronic equipment. This rigorous testing program in sures the quality of MAC Panel Com puter Tape and assures the tape user that every reel received is in perfect condition. Tape that passes final inspectionis degaussed and placed in thoroughly cleaned plastic canisters. Each canis ter is then placed in a hermetically sealed plastic envelope to prevent any seepage of dust and other impurities. The entire vinit finally goes into a specially designed corrugated package. This rugged package, de signed to ab sorb shock during tran sit, also fea^ tures a tape packaging in novation, the "handy- han dle "that pro vides carry ing conven ience. computer tape -8-
Amco News (High Point, N.C.)
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Aug. 1, 1963, edition 1
8
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