richardkrebs
Responses from richardkrebs
| Eminent Technology ET-2 Tonearm Owners Re quality factor, Q. ... under, critically or overdamped systems, as they relate to the ET2. My running the arm at 12 psi is no accident. I addressed the Q factor of my arm years ago. And the bearing has no issues at all carrying the extra weight... | |
| Eminent Technology ET-2 Tonearm Owners ThekongThanks for thatThe advantage of lead is of course its high specific gravity, it is dense and self damps quite well.Don't know the effect of other materials there. This could be a new line of exploration. I look forward to your findings.Thanks | |
| Eminent Technology ET-2 Tonearm Owners Thekong.Just for clarity. Will you be adding the fixed counter weight to the ET2.5 or the ET2?You mentioned the ET2 in your latest post.thanks | |
| Eminent Technology ET-2 Tonearm Owners Dover.Mea culpa. Although it is blindingly obvious that Thekong will be using a ET2.5, since he states same several times, I completely overlooked that fact, thinking that he was working on a ET2. My mistake.It would still be informative if Thekon... | |
| Eminent Technology ET-2 Tonearm Owners Chris.I also thank you for your insightful testing of the ET2.5.It confirms that adding too much mass, by way of locking the counterweight is not a good idea, if it takes the arm out of the appropriate resonant frequency range. I did say earlier t... | |
| Eminent Technology ET-2 Tonearm Owners Dover.No confusion at all. In Engineering, the term absolute is.....absolute.By way of example, over on the TT drive thread, a fellow poster said that " there is no stretch in the silk thread I use to drive my platter." or words to that effect. Wi... | |
| Eminent Technology ET-2 Tonearm Owners DoverAgain you enter into needless personal attacksDoes the cantilever deflect due to the higher lateral forces imposed upon it? I see no movement with my cart tracking eccentric records and the math predicts none. However in absolute terms no one... | |
| Eminent Technology ET-2 Tonearm Owners Chris.The 6 x multiplier is a factor extrapolated from the graph I posted the link to. 6 x being a figure where the resonant structure would likely be still, with some safety margin. It would not change with cartridge compliance. But the system re... | |
| Eminent Technology ET-2 Tonearm Owners Dover. I don't think that personal attacks advance this thread, so lets both agree that we stick to our opinions on the subject or post relevant information.Shown here is a link to the Math on driven harmonic oscillators, a mathematical representa... | |
| Eminent Technology ET-2 Tonearm Owners Thekong.Thanks for posting the photo of the counterweight arm. One suggestion is that you need to be very carefull with the stiffness of this. Any shake rattle and roll here is bad since it is no longer free to pivot about the leaf spring. I exper... | |
| Eminent Technology ET-2 Tonearm Owners Dover The fact that it takes considerably more force to accelerate a heavy arm sideways is self evident. What I have constantly said is that this force will not be enough to deflect the cantilever while tracing an eccentric record, provided the re... | |
| Eminent Technology ET-2 Tonearm Owners Dover.If the cartridge does not have a (damped) spring inside, please explain to us what causes the cantiliver to return to its rest position. My discourse on resonant frequency IS the whole point, since the resonant frequency is set by the horizi... | |
| Eminent Technology ET-2 Tonearm Owners ThekongWe look forward to reading your comments. | |
| Eminent Technology ET-2 Tonearm Owners ThekongI don't know how long patents last, but would suggest the reason that Lloyd does not decouple the counterweight is simple. It sounds better. | |
| Eminent Technology ET-2 Tonearm Owners Dover.You need to research the difference between the two air bearing types. The Kuzma is unusual in its choice of bearing construction. So how am I wrong in my statement that the use of porous material appears to be unique? This in no way detract... |