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How warped can you get?

Ok, I should have looked closer at the LP before buying it. I was lifting a newly purchased copy of Renassiance Novella off of my cleaner and I noticed that the middle lifted quite a bit while the edge was still down. The surface looked really clean with no noticeable scratches so I decided to give it a test spin. I swear the cartridge is oscillating 1/4" in the verticle, but the playback is really good. I mean, it would be pretty hard to not to notice if Annie Haslam's voice was being distorted. I don't dare take the covers off of the woofers and have a peek.

So, I have to ask what is the most warped record you play successfully on your TT?
dan_ed
Post removed 
dougdeacon
3,338 posts
 
Anybody ever successfully flattened a warp? I've read posts about putting a disc between two pieces of glass in a 130F oven for ten minutes or so. What do you think?
cylinderking_1
130 posts
 
Ya I also have a couple favorite`s that are warped. I can track them, (VPI TNT JR / SME 309 / Benz Ruby H) with no change in sonics,with the clamp some still have a good dip. What concerns me is the cantilever on the Ruby it can`t be good for it. Thats why I use caution on those album`s I don`t know if will cause a shorter lifespan on the generator on the MC. David
twl
3,251 posts
 
Doug, I tried the heating the record between plates thing when I was in high school. Yes the record was flattened, and all the groove information was too. Totally non-playable after the heating. I then used it for a frisbee. It was a first pressing(when it was originally released) of Iron Butterfly "Heavy", their first album. At that time, new LPs were available for $2.99 each!

Maybe others have had better results, but that episode cured me from bringing any other records near the oven!
dougdeacon
3,338 posts
 
Tom, Thanks for the cautionary tale. I trust you were able to find another copy. A first pressing though... ouch!

I remember warnings to put the record in a cold oven and not to exceed 10 minutes @ 130F. Still, I wouldn't experiment on anything that isn't already scratched up.

I'm trying to remember what Frisbees cost in 1968. $2.99 seems a little high.
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