terry9
Responses from terry9
| Direct Drive vs. Idler Drive vs. Belt drive @chakster , graphitestore.com helped me with expert advice and a good product at a very fair price. I was told that they have provided platter mats before, but never as thick as an inch. My big iron platter rings at 500Hz, the graphite top rings a... | |
| Direct Drive vs. Idler Drive vs. Belt drive @chakster , have you considered graphite? The good people at the Graphite Store were very helpful. I use 1", which they thought was a bit over the top. | |
| Direct Drive vs. Idler Drive vs. Belt drive Agreed. | |
| Direct Drive vs. Idler Drive vs. Belt drive @atmasphere Thanks for your thoughts, Ralph. About air bearings, I think that a very heavy platter on an amorphous carbon thrust bushing is virtually immovable - at least, mine is. You need a lot of force to raise it - and more to lower it - 87N p... | |
| DIY Custom Made Turntables, some doubts.. Thinman, you might also want to consider an air bearing. Once you have heard one, there's no going back!I use a New Way thrust bushing for a very stiff air cushion in 3 dimensions. Virtually noiseless. | |
| DIY Custom Made Turntables, some doubts.. Thinman, you can build one heck of a turntable for $10,000, especially if you can do some of your own machining and electronics.Motor and controller is an issue. Easiest, and arguably the best, is an AC synchronous motor with a solid state control... | |
| DIY Custom Made Turntables, some doubts.. I suggest that you visit a good retailer and listen to a few options at your price point, so that the retailer gets some idea about your tastes. Tell him about the rest of your system, so that he can advise you about how components should act toge... | |
| Direct Drive vs. Idler Drive vs. Belt drive New Way air bearings have amorphous carbon faces, resulting in literally millions of ’apertures’. I saw a U-Tube presentation of a shaft rotating in an air bearing (maybe New Way), spinning freely, when the high pressure air supply to the spindle ... | |
| Direct Drive vs. Idler Drive vs. Belt drive Air bearing stabilizes the platter in 3 dimensions - there is no intrinsic bearing noise. | |
| Direct Drive vs. Idler Drive vs. Belt drive @chakster To demonstrate bearing noise, I listen to a revealing passage as per normal. Then I turn off the power. No change (other than the obvious slowing of the platter). Then I remove the drive belt. Change for the better - trace of high freque... | |
| Direct Drive vs. Idler Drive vs. Belt drive @chakster "Motor vibration or bearing noise ... it is all myth and fear coming from belt drive users."No, it is demonstrable. | |
| Direct Drive vs. Idler Drive vs. Belt drive @tzh21y "Wow, you have sensitive ears. LOL"The motor was naked for display purposes, and I held it next to my ear. The 2W precision motor was silent in the same test. | |
| Direct Drive vs. Idler Drive vs. Belt drive Belt drive. | |
| Direct Drive vs. Idler Drive vs. Belt drive At the risk of disagreeing with those who know more,- agree with the late legend Tom Fletcher, who thought that powerful motors generated powerful vibration hence audible distortion;- agree with the air bearing crowd who think that all conventiona... | |
| Worth the effort? Cabling inside sub There are safe ways to solder around PTFE, but they involve things like:- fume hoods with high volume exhaust;- respirators;- gloves;- soldering at eye level so hot gasses flow up and away from the face;- low temperature solders;- precision solder... |