Exactly this.
If you get the strobe light and the dots are moving, how can you tell, if the speed is within tolerance or not?!...get it nevertheless, it's cheap enough.The score was +0.07%. I can totally live with that but, I will run a proper speed test using the strobe and fluorescent light to be sure.
is actually what the whole playing records story is about.there is also a point where it just doesn't matter that much and getting it close is good enough.
I have a 4' level that says my kitchen counter is level, and the bullseye levels for my TT also say it's level, so that's good enough. Some arms are more sensitive to it than others.there is also a point where it just doesn't matter that much and getting it close is good enough.
Before someone comes along and actually buys one of those high precision machinist's levels, I was kidding. Yes they exist, no they are not even remotely sensible to level a turntable with. I wasn't kidding about how to confirm calibration of a level though. If its not consistent regardless of orientation its not going to give sensible results.
I'm sure it's great but not 120 british pounds great!If you really want to make sure the important parts of you platter are level, I recommend the Avid High Precision Level: AVID High Precision Level ( With spindle hole ) & 45 rpm adaptor
Its a beautifully machined 45rpm adaptor with a machined bubble level that sits on top of it. Brilliant gadget and I wouldn't be without mine.
I have one that says a set of shelves I built is level, but my eye and a marble says its not. Somehow by an absolute miracle I put that level on each shelf the same way each time. Spin it around and the bubble goes to one end. The level itself is screwed up. Luckily they are just garage shelves and having them perfectly level doesn't matter all that much. I jammed some scraps of plywood under the legs at one end, its close enough.I have a 4' level that says my kitchen counter is level
Just don't store marbles on it and it'll be fine.I have one that says a set of shelves I built is level, but my eye and a marble says its not. Somehow by an absolute miracle I put that level on each shelf the same way each time. Spin it around and the bubble goes to one end. The level itself is screwed up. Luckily they are just garage shelves and having them perfectly level doesn't matter all that much. I jammed some scraps of plywood under the legs at one end, its close enough.

I always test them against themselves — and against a known good level. You can get three very good round ones out of 5.Do not use a bubble level as they are very inaccurate and not good enough for a turntable.
Okay. I'm not saying to not use traditional bubble levels. It's just that, in MY EXPERIENCE, the round ones do work. Tested against each other and against a beam level.Unfortunately round bubble levels have very poor Resolution.
That's why we don't use them.
The longer the bubble the less curve the higher the resolution.
A bubble would need to be 3 inches in diameter to match a String level.
Do not use a bubble level as they are very inaccurate and not good enough for a turntable.
Get a "String Level" at the hardware store. Less than 4$ and they are Highly Accurate!
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Maybe the confusion is that when the bubble is in a tube, it looks elongated. When it's in a round glass container, it looks round.a "string level" is a "bubble level"
Look! I'm not trying to diss you. If you like using string levels or traditional levels, that's fine with me.SORRY I FORGOT THOSE ARE CALLED "BULLS EYE" LEVELS...
FEEL BETTER NOW?