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VPI TNT balancing

I�m currently using a VPI TNT 6 HR turntable (JMW 12.5 tone arm) along with a Shelter 501 cartridge. I have carefully leveled the turntable and rack using the small VPI level as well as a longer level (about 18�) just to be certain all is OK. I periodically go through the set up process to make sure that none of the adjustments have changed. So far so good. Here�s the problem � at least I think it�s a problem. In order to get the proper tracking force, the counterweight is virtually at the extreme end of the tone arm. Although I have never had a problem with tracking, the arm is rather unstable when cued on and off an lp. My manual indicates that the counterweight should be as close to the pivot point as possible in order to make the arm more stable. I suppose I could add another counterweight, but I�m afraid that will be way too much weight on the non-cartridge end. Has anyone had a similar situation, and if so, what was the solution? Thanks.
frankm1
sns
653 posts
 
Your problem sounds really bizarre! The Shelter only weighs about 8 grams, the stock counterweight should be applying proper tracking force close to the pivot point. You either have something seriously wrong or some really lightweight counterweight. Contact VPI.
markd51
741 posts
 
Hi Wendell,
I know us folks are trying to help the original poster, and sometimes my friend, things can appear to be a bit confusing. I only hope us, or others have written here have helped the OP. We're all here of course for the very same thing, and that is of course to have ear to ear smiles when the stylus touches down on vinyl! :-) Mark
frankm1 OP
41 posts
 
Thanks every one. As I mentioned, my dealer is contacting VPI - I believe they return on the 16th. Suspect hifibri may have hit on the solution, i.e., a heavier counterweight. I'm just a bit surprised that no one else has encountered this, as was pointed out above, the Shelter cartridge would not seem to pose an unusual load.
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