I've got about forty 7" reels of Melody 166 (1.5mil polyester) recorded
in 1969/70, with more on the way. So far I've been able to digitize 22
of them, but 5 have presented issues of oxide(?) squeal. I am looking
About the only reference I've found to Melody was Richard Hess
discussing soft binder (in Melody 169) in his Degrading Tapes paper. He
mentions that 169 was "3M seconds" and that it also suffered from
slitting issues leaving it sometimes over wide, both of which I suspect
are also true of 166.
My tapes have no symptoms of sticky shed, and relatively little oxide
shed. They were very dirty, and have been wiped with Pellon or another
non-abrasive lint free fabric. With the problem tapes I've applied LAST
magnetic tape preservative, hoping its lubricant properties would help
even a buckling oversize tape get through the guides without oscillating.
I am using an Otari 5050, cleaning the guides, heads, and pinch roller
between reels (and sides).
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