MajorFubar said:Conversely, I have various inherrited records in my collection dating from the late 50s which have been played hundreds of times. Contemporary opinion suggests they should at the very least have lost all their HF content by now, yet a spectrum analysis shows they still have HF content to beyond 15kHz, which was probably the limit of the three-track Ampex tape recorder and the cutting head. They all still play significantly quiter with less pops and bangs and surface noise than a modern LP after half a dozen plays. We were better at making records then, for some reason.
Yes, but 1950s LP pressings/recordings were done by people who knew their craft and cared a stuff about it!
1970s recordings were often made by a bunch of stoned idiot friends of the band who were seeing three imaginary desks to every real one and then pressed onto thin, ‘Oil Crisis’ era, recycled vinyl! (A 1970s ‘Autobahn’ LP of mine had a small clump of what seemed like fur embedded in it once.)
Basically no-one cared back then except the classical labels.
1950s LPs = acceptable alternative to Chobham tank armour.
1970s LPs = good as novelty present wrapping because they fold and bend so easily.