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Any Strobe recommendations/experience for turntable speed test

unless its a Thorens with a factory belt. Those run on speed. For reasons beyond my comprehension that doesn't seem to be the case with any other belt.
Mine is a Valhala LP12. What are said to be Linn belts are $60+. If needed I may try a generic. Belt on it is 5+ years old.
I've a TD 165 for rebuild. Have couple new belts.
 
Mine is a Valhala LP12. What are said to be Linn belts are $60+. If needed I may try a generic. Belt on it is 5+ years old.
I've a TD 165 for rebuild. Have couple new belts.

How fast does it run? Have you tried the turntable RPM smartphone app? I think turntables running a bit fast is a poorly kept secret - if it isn't a gross error, why not just enjoy it as-is? If you are the sort of person who will only be satisfied by exactly 33.33333 RPM, the only realistic path to this is direct drive.
 
I'm guessing that some people are more sensitive to this than others.
I don't have perfect pitch but my brain seems to know when a familiar song is playing slightly fast.
My Rega Planar2 drove me nuts until I put a layer of electrical tape on the sub-platter to slow it down.
From what I understand, they were manufactured that way to sound "brighter" in the showroom.
I like the capability of my rim drive Dual 1019 and 1219 to be able to dial in the strobe disc.

But that doesn't solve Old Guy88's dilemma. I was just addressing the pitch sensitivity issue.
 
How fast does it run? Have you tried the turntable RPM smartphone app? I think turntables running a bit fast is a poorly kept secret - if it isn't a gross error, why not just enjoy it as-is? If you are the sort of person who will only be satisfied by exactly 33.33333 RPM, the only realistic path to this is direct drive.
I DON'T KNOW that I do have a problem.
Am interested in knowing where the speed is at. I'll try a speed app to see where it's at. An AKer sent me a PM with a LP12 speed issue repair vid. A couple apps named there. Vid said it should get to speed within 5 seconds. I've always helped it get going, and never noticed how long it takes.
Unless it's way off, I'll likely let it alone. If not broken...
 
Thanks to all. For overwhelming help ideas.
I don't know that I have a problem with the table. Interested in what speed it's running at. Can't say I hear that it's off speed.
Will try a turntable speed app to start.
 
Linn running about 33.1 checked with phone off center on platter close to center. Is this how its set on platter?
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Thinking it should be slightly fast, instead of slow.
It gets to speed in 2 to 3 seconds.
 
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I put my phone on top of a roll of packing tape, centered over the middle of the turntable. That does look slow, but phones are not always totally accurate. Maybe try it on another deck.
 
I put my phone on top of a roll of packing tape, centered over the middle of the turntable. That does look slow, but phones are not always totally accurate. Maybe try it on another deck.
So the phone reads around 33.39 on a quartz locked direct drive TT. And about 33.07 on the Linn.

Maybe I should order a new belt, before trying any adjustments. See if that brings the speed up. I bought the Linn in '15. Still the same belt on it. Don't know how old it is.
 
Sometimes it is better not to know, most belt drive turntables run a little fast

It's easier to discern when someone is singing flat or the music is slower than it should be.
An ever so slightly higher speed might give the music a kick which most of us don't mind.
Belts and waistlines do seem to increase with age so a little fast might be part their plan
 
Looks like about a 1% difference between tables.
Can you hook them both up and A/B them with the same song on a record or tone on a test record to see if you can hear the difference?
Not sure what 1% would do to pitch.
Maybe detectable to some people but not others?
 
Mine is a Valhala LP12. What are said to be Linn belts are $60+. If needed I may try a generic. Belt on it is 5+ years old.
I've a TD 165 for rebuild. Have couple new belts.

ALWAYS, get an original Thorens or Linn Sondek belt! Aftermarket are just not the same!
 
So the phone reads around 33.39 on a quartz locked direct drive TT. And about 33.07 on the Linn.

Maybe I should order a new belt, before trying any adjustments. See if that brings the speed up. I bought the Linn in '15. Still the same belt on it. Don't know how old it is.

Don't rely on the phone speed apps. I’ve tried a couple and they are not consistent nor do they match an accurate strobe disc.
 
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How do the phones actually measure this? I'm guessing its using the internal accelerometer?

Yep.
Don't rely on the phone speed apps. I’ve tried a couple and they are not consistent nor do they match an accurate strobe disc.

Sure but if one turntable consistently measures good with the phone, and another consistently measures bad with the same phone, it is cause to investigate if the bad one is actually bad using a strobe disc. The results the OP got on his Linn would definitely trigger me to confirm the speed with a strobe disc and then fix it.

There are several strobe discs you can download and print out, and then use them with any sort of line powered light.
 
Yep.


Sure but if one turntable consistently measures good with the phone, and another consistently measures bad with the same phone, it is cause to investigate if the bad one is actually bad using a strobe disc. The results the OP got on his Linn would definitely trigger me to confirm the speed with a strobe disc and then fix it.

There are several strobe discs you can download and print out, and then use them with any sort of line powered light.
I have a strobe disc.
I'll inspect the belt. May order a new belt. Mine is over 5 years. Table sounds good. But being an Audiophile, always thinking about improvement.
If I remember right, speed adjustment entails a set screw to tilt capstan. But not going to adjust if a new belt is answer.
 
This works. I even tried one on a Technics SL1100 which has the socket for the plug in strobe. Aside from the angle being off it was fine.
exactly. I use the end of a strand of cheap LED xmas lights, which are half wave. with the printed strobe disc from online lets me set the speed every time.
 
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