Turnable database with TimeLine

01-17-14: Lewm
Tony, According to others, the laser flashes 6 times per revolution. That means you can get a read-out every 0.3 seconds. So you are indeed "averaging" the speed, but it is over a very small increment of time....

Another example, the new Airforce One Turntable from TechDas has 1x contact per revolution with the own motor controller. This seems to be enough to hold the platter speed no matter what is going on. I never checked it but I read from an owner who did the Sutherline Test and it was ok. Personally I believe it because when the Japanese do something serious, they don't make a fault like this.
When timeline has 6 flashes per revolution, it isn't that bad, or?

I am not a fan of servo controlled speed. The speed is wrong a lot of the time!

A properly designed turntable should run at a constant speed!

If there is stylus drag (that audibly effects sonics) , then increase the speed slightly.

I like the VPI SDS - regenerated AC - a variable Quartz crystal controlled frequency in steps of 0.01 Hz - after startup reduces voltage for lower noise - modified sine wave for smoother motor rotation.

It made a "huge" sonic difference on my TNT III, when the speed was set with strobe disc.

All the VPI Classic turntables need the SDS, even though it was originally made for the TNT line.

Syntax said...

Another example, the new Airforce One Turntable from TechDas has 1x contact per revolution with the own motor controller. This seems to be enough to hold the platter speed no matter what is going on. I never checked it but I read from an owner who did the Sutherline Test and it was ok. Personally I believe it because when the Japanese do something serious, they don't make a fault like this.
When timeline has 6 flashes per revolution, it isn't that bad, or?

wow, you are not critical of the AF1 ? As far as speed control, it helps when you use a built in tachometer that monitors and speed adjusts based on record drag. Record drag can vary record to record as I am sure you know...

Well it's nice to know that my previous posting about Tonywinsc claims goes unread or misunderstood.....so I'll repeat it once more before I'm out of here.
The analogy to a car's engine is totally spurious for this is DESIGNED to increase and decrease speed.
Any AC or DC synchronous motor is designed to maintain constant speed.
The Timeline flashes exactly once every 1.8 seconds which co-incides exactly with one revolution of the platter if spinning exactly at 33.33rpm.
If we watch it for 100 revolutions and that 'flash' is hitting the mark at exactly the same point every single time.....we can logically conclude that its speed is constant....UNLESS it can be proven otherwise?
And Tonywinsc has not once...proven otherwise?
It is not possible for a synchronous motor to speed up and down in between the 1.8 second interval yet CONSTANTLY hit the same mark every revolution.

For any scientists who may be reading this Thread and shaking his head in disbelief.....my apologies to you.
And to Ron Sutherland....forgive them for they know not what they speaketh...

Lew,

Henry, I don't think Syntax's post about the Kuzma was so provocative.

Of course it was......
Syntax was apparently observing the Kuzma turntable with the Timeline in action yet he didn't use his iPhone to film this and upload to YouTube (as we know he can do)....which is the point of the Thread.
Instead....he spreads malicious rumours by 'words' only?
But this is his preferred modus operandi as can be seen over the years of 'Raven baiting'?
Thankfully we now have a video of his 'famed' RX-5000 displaying for all to see....an abject and inferior speed maintenance performance.
This video has finally put to rest any desires I might have had to actually obtain a Micro RX-5000.
Be prepared for this damning video of his to mysteriously be removed from YouTube in the near future......?