Wonderful read Mosin.
Thx for sharing.
Thx for sharing.
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- 361 posts total
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 |
Ct0517 Thank you for that. I gave up trying to build the website myself, so employed a professional. The triangular TT is my own design and build using a SP10 MK3 motor. New platter added 12 years ago. I have used this TT to develop my upgrade. Arm started life as an ET2. As you can see it has undergone a little surgery. |
Lewm - Re the NVS servo question : please read my posts more clearly. My post of 02-04-13 explains that the term "17 degrees of freedom" used on the NVS website under the title "Speed Control" indicates they use it. I included an explanation as to why. My post of 02-07-13 cites the Stereophile Review in vol 35 no 10. "servo controller with an active ultrasonic feedback loop" If you want to believe black is white, thats fine, but please dont misconstrue my posts. Thank you. |
- 361 posts total