Direct drive vs belt vs rim vs idler arm


Is one TT type inherently better than another? I see the rim drive VPI praised in the forum as well as the old idler arm. I've only experienced a direct drive Denon and a belt driven VPI Classic.
rockyboy
Richard,

Regarding R&D for my turntable, it is expensive. In fact, it is so expensive that I will probably never recover the costs. The time I tossed $1500 worth of spindles into a trash barrel comes to mind, as does the seemingly endless controller revisions. Don't expect me to forget the 79 NOS motors I bought, either! Was it worth it? Yep.

I learned the hard way, but I suppose that's how it is with most small manufacturers. R&D isn't just about buying stuff and making parts, however. It really is about learning. You think you don't know anything, and then you realize that you have been eating and breathing it for a decade, so you must have picked up something along the way. That's how R&D works; it's incremental.

Most small start-ups can't afford big time R&D, so their approach may be different from the Panasonics of this world. For me, it involved reading countless white papers that others had written. It involved making purchases of numerous vintage turntables just to see what makes them tick, and it included observations of other machines outside the audio realm. It goes on and on, and it is as much passion driven as anything else. When it is all said and done, I hope everyone who owns one of my turntables will enjoy it for a lifetime. My goal is to make a turntable for my personal use that I don't want to upgrade. Then, it's finished.

Ketchup,
I have a controller to run my turntable, too. Is it laboratory grade? I suppose so, but I never thought about it in that light before.

I suppose calling it an audiophile grade controller would have been better, but nobody would be impressed in the least with a name like that. I honestly don't know what it should be named because it will have followers and detractors, no matter what.

A story...
My friend, Dave Slagle, has been working with strain gauge cartridges ever since I have known him. Not too long ago, he developed a new type drive for them, and he built one for me. He didn't provide a power supply for it, though. So, another friend gave me a laboratory grade power supply to run the thing. It says right on the panel "Lambda Regulated Power supply", and that's a known laboratory grade one. Does that make me happy? Well, I'm waiting for that genuine Dave Slagle audiophile grade one to appear at my house. It just goes to show, you can't please everybody no matter what you do. :)

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Mosin.

Thanks for this. A great read.
It seems that there is a common theme driving all small audio manufacturers and that is "passion"
Ketchup, In response to your question, which I think was aimed at Dover, I wrote after Dover's post that I visited the NVS website and did not find the word "servo" mentioned there, which still leaves open in my mind the possibility that they don't use a servo. They may have said they use a "laboratory grade" power supply, however. If I just missed seeing the mention of a servo on the NVS website, I do not mind being corrected.

I have a laboratory here, albeit a biological one. In my lab we have many power supplies that are used primarily for electrophoresis. We don't generally use Lambda brand, but I have seen them in other labs. The voltage regulation required for a lab grade power supply used for electrophoresis is probably not as stringent as that needed in audio amplifiers and preamplifiers, or in the best AC motor controllers. I have always meant to bring in one of my meters and determine how much AC is present for a given set DC voltage put out by one of our lab units, but I have never done so. However, in other kinds of laboratories, especially where physics and chemistry are the subjects, I could imagine that voltage regulation is far more stringent. So, the term "laboratory grade", by itself, is fairly meaningless.
Hi Richard, Albert Porter, Bill Thalmann
I came across your new website today.
As a hobbyist with no affiliation to any of you - congrats on the new site and good luck.

Richard
May I ask if this pic from the site is your personal
TT / Tonearm setup or another customer's setup ?
Cheers Chris