o-ring size

Re: o-ring size

Postby coglesby » Thu Jan 14, 2021 12:02 am

I found that the local harbor freight has a runout gauge and pretty sure I understand what I need to do.

At least I can raise the platter a tad to correct the VTA issue and should be sonically better without the platter setting on the flange.

Still not sure if that’ll improve the wow and flutter. I’m going to go ahead and replace the o-rings and that should eliminate any wobble of the platter on the spindle.

I’ll update when done.
AT-ART9 or DV 17d3 Karat > VPI Classic 3 Tonearm > VPI Aries (1) > Liberty B2B > Sansui G-9000 > GoldenEar Triton Ones
coglesby
Senior Member
 
Posts: 106
Joined: Tue Mar 10, 2020 5:33 pm

Re: o-ring size

Postby Brf » Thu Jan 14, 2021 7:39 am

Make sure you get the run out gauge with the stand, it makes the setup a breeze. The three points couples the platter to the bearing and helps isolate the platter from the bearing which results in lower noise. A perfectly level platter which rotates perfectly on the horizontal axis will result in a lower wow and flutter and better speed stability.
Attachments
273FEBAE-EFDE-4F49-963F-CC69244B1582.jpeg
273FEBAE-EFDE-4F49-963F-CC69244B1582.jpeg (30.87 KiB) Viewed 68 times
User avatar
Brf
Site Admin
 
Posts: 4712
Joined: Tue Aug 26, 2014 9:23 am

Re: o-ring size

Postby coglesby » Fri Jan 15, 2021 1:57 am

Thanks for the suggestion. That was incredibly easy with the runout gauge. I now even have some VTA adjustment room and can remove the headshell spacer.

I now realize the o-rings are fine because the spindle doesn’t easily slide out of the platter.

Wow and flutter still shows to be about 0.2%

I’m going to clean the shaft and Teflon tube it slides into and see if that helps.

I may need to increase the idle voltage on the SDS. It’s currently at factory default of 72v
AT-ART9 or DV 17d3 Karat > VPI Classic 3 Tonearm > VPI Aries (1) > Liberty B2B > Sansui G-9000 > GoldenEar Triton Ones
coglesby
Senior Member
 
Posts: 106
Joined: Tue Mar 10, 2020 5:33 pm

Previous

Return to Support Forum

Who is online

Users browsing this forum: Google [Bot] and 19 guests

x