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Post by julesd68 on Apr 23, 2018 10:57:57 GMT
I've just noticed that I have managed to 'dish' a brand new record by cleaning it on my RCM. Not happy. It was the last one of a batch of about 10 and the vinyl was particularly thin so not much resistance. From what I have read, it is due to the transference of heat from the spindle, which does get very hot to the touch after a while, in combination with the force of the vacuum. I'm now going to clean in much smaller batches - more inconvenient, but really don't want this happening again ... I've been suspicious about it happening before, but nothing like today - has anyone else noticed it?
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Post by MartinT on Apr 23, 2018 11:45:28 GMT
Which RCM is this, Jules? Certainly doesn't happen on mine.
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Post by ChrisB on Apr 23, 2018 12:58:35 GMT
It's not something I have ever come across either.
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Post by julesd68 on Apr 23, 2018 13:14:42 GMT
It's a Hanns Acoustic RCM. Similar to many others. Yep it has spoilt a couple of discs at least today. Really pissed off. I will be very careful in future. I found something about some VPI users complaining of the same - www.audiointelligent.com/rcmmuseum.htm
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Post by julesd68 on Apr 23, 2018 14:28:40 GMT
Could anyone who cares to try help me out to check I'm not imagining what's going on here? Please pick out say 5 random vintage lps (not new pressings) and see if they lie exactly flat on the platter when spinning, ie no light visible between vinyl and platter which shows it's lightly dished ...
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