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How best to eliminate LP warps

I own about 2500 LPs, and I like to think they're flat.  Furthermore, I espoused the view that warped LPs ought to be discarded.  But lately I have found 2 or 3 of my LPs that do have warps but sound too good and are too precious for the music recorded on them to throw away.  So I am in the market for ideas on how to remove warps.  I am aware that there was a device on the market that looked like a large waffle maker, to be used for warp removal.  I think Furutech made it, but I never see it advertised these days.  I am also aware of the DIY method of placing an LP between two glass plates and heating the ensemble.  The question there would be how hot and for how long?  Any suggestions are welcome, especially opinions on the efficacy of the Furutech.  Thanks.  Please no comments on vacuum hold down; I think it's a great idea but none of my five turntables has that feature.

lewm

Showing 2 responses by jazzguy43

jazzguy43
32 posts
 

Friend,

No! No! No1 The physics will not work for you. Once a round object is warped it is really not round w/an eccentricity of 1.0! Nothing you do will ever bring the eccentricity back to 1.0! In essence you will now have an ellipse and your lp is not round. Watch the tonearm swing and make your lp sound on the weird side. Benn there, done that! Also, too much pressure w/heat = NO MORE GROOVEs!!!!

jazzguy43
32 posts
 

hmmmm, if materials behaved this way the second law of thermodynamics would be broken! I encourage you all to read about entropy and IRREVERSIBLE energy! It is a fundamental foundation of how the universe works. There is a real difference between science and science fiction, having a warped lp remain round after removing the warp is FICTION! Furthermore, on the flat edged lps using two pieces of glass in the oven WILL MAKE IT FLAT; no question, but all the groove tops have been flattened as well! You can all believe what you choose, a good start is a BS in ENGINEERING or PHYSICs! I am a retired nuclear chemical engineer who believes in the laws of nature that are explained through mathematical relationships.

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