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Turntable speed stabilty
Turntable speed stabilty
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Old 23rd July 2017, 05:37 PM   #171
Pano is offline Pano  United States
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Turntable speed stabilty
Super, I don't see from the latest plot how the ring makes things worse. Maybe that little slow down around 2:00-3:00 bothers you? Otherwise the speed looks the same as without the ring, just a bit smoother.
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Old 23rd July 2017, 06:02 PM   #172
super10018 is offline super10018  United States
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Quote:
Originally Posted by Pano View Post
Super, I don't see from the latest plot how the ring makes things worse. Maybe that little slow down around 2:00-3:00 bothers you? Otherwise the speed looks the same as without the ring, just a bit smoother.
Hi Pano,

Please see attached image and pay attention to the shadowed areas. The frequency was suddenly shifted at starting point and back to normal at ending point. And, both plots with and without the outer ring seems to be very similar.

Jim
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File Type: jpg SME20-with--v--without-outer-ring.jpg (411.5 KB, 68 views)
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Old Yesterday, 01:53 AM   #173
super10018 is offline super10018  United States
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Pano,

The latest polar plot shows two consecutive revolutions (red and blue) from my 'without outer-ring' recording. Hope this helps.

Jim
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Old Yesterday, 04:34 AM   #174
Pano is offline Pano  United States
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Turntable speed stabilty
Ah ha. Thanks, I had forgotten that part.
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Old Yesterday, 10:39 PM   #175
AVWERK is offline AVWERK  United States
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Jim, is your platter/rim combo balanced and do you have a mark where you always put the combo so you know its a constant ?

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David
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Old Today, 12:57 AM   #176
super10018 is offline super10018  United States
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Originally Posted by AVWERK View Post
Jim, is your platter/rim combo balanced and do you have a mark where you always put the combo so you know its a constant ?

Regards
David
David,

No. There is no mark. I put it on without any reference point at all. The platter and rim combo has never been balanced.

Jim
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