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Why is my turntable's frequency response now dropping off?

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wow , that is a lot! I posted a FR vs T somewhere here , from a Japanese document. Maybe you can find it, I am too busy , wife is on the phone so here is one,..
 
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Wow! I never know temperature could have that effect! But I sure don't miss analog vinyl! :p
 
View attachment 367776wow , that is a lot! I posted a FR vs T somewhere here , from a Japanese document. Maybe you can find it, I am too busy , wife is on the phone so here is one,..
Yes, before posting my original post, I read online about temperature changes being able to change the frequency response, and I came across this chart, but I was honestly very skeptical, like I wrote in my original post, since there's so much BS floating around online in the audio world.
 
Temperature changes can also require a minor change in tracking force sometimes, at least in my experience. I think there was a paper about it on some Japanese site
 
My indoor temperature is about 22-23 in winter and at most 24-25 on a hot summer day, so not much of a problem
 
That was the one i could not Find.
Next , i have to Get out A hairdryer and heat the cartridge before the frequency sweep..
 
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