lewm

Responses from lewm

How best to eliminate LP warps
Terry, you wrote, "My DIY air bearing tonearm / Koetsu setup is sensitive to small azimuth changes - 6 minutes of arc from perpendicular is clearly audible".  That's remarkable because it infers that your Koetsu is perfectly constructed internally... 
Aidas Cartridge
Ummmm... Nine months with no contact from the people at Aidas is not just poor customer service.  It's no service at all, or possibly your box got lost in transit.  
How best to eliminate LP warps
Dear jw, Your assumptions are not quite accurate. I normally do not fuss over warped LPs, as I observe them very infrequently in LPs in my collection of 2500 or more LPs, but I would not dare to guess what fraction of that total is warped. However... 
Choosing the right SUT for my setup
My advice if you want to build a SUT box is to buy the transformers from Jensen, and they’ll help you with the rest.  
How best to eliminate LP warps
optimize, You make a good point and it shows good thinking, but I question whether what you say is true for all warped LPs, because in many cases the warp you observe is compensated for by several smaller less visible warps in the opposite directi... 
How best to eliminate LP warps
I think the premise behind flattening the LP by heat and pressure is the hope that the LP WILL return to its original flat shape, that the stretching represented by a warp, if it is indeed stretching, will be eliminated by a corresponding shrinkag... 
Cartridge Loading.....Part II
Ralph, in an ideal current driven phono stage that uses an op amp to sense current, is the coil of the cartridge connected to that virtual ground that you describe? One end of course. If that is the case, where do they connect the other end of the... 
How best to eliminate LP warps
So you’ve recently examined each and every one of your 2000 LPs, and you know for sure that only 5 have a detectable warp? I doubt it. Actually I too had that smug attitude toward the issue, until recently I detected moderate to severe warps in 2... 
Does anyone have any experience with a Sutherland Little Loco?
The low Z Sussuro regularly sold by SS has internal R of 10 ohms. That’s fine for current drive but its inductance is much higher than that of a typical LOMC, about 1000 times higher in fact. Which is why I thought they warn against current drive.... 
How best to eliminate LP warps
Thanks, guys.  I think we've covered the waterfront when it comes to curing warps. Unless someone else has a treatment not already mentioned.  My preference is to reduce the magnitude of the warp before playing the defective LP.  I am less interes... 
How best to eliminate LP warps
Orb from japan via eBay works for me if I decide to go that route. $1150. As noted, 100V is no problem at all. A proper step down transformer can be had for ~$50.  
How best to eliminate LP warps
edcyn baby, No vacuum hold down for me, on any of my 5 turntables. Once upon a time I did own a Star Sapphire Series III with vacuum, but no longer. I had completely forgotten about the Vinyl Flat options, probably because warps were such a rare ... 
How best to eliminate LP warps
audioguy, I disagree that the method you mention works well, certainly not for both sides of the same LP, because warps in one direction that may be ameliorated would not be affected as much or at all, when you flip the LP. I do have a SOTA reflex... 
Turntable noobie...what advice do you have?
I won’t participate in the endless and sometimes pointless debate about which cleaning method is best or especially about which static charge removal method is best, but I will say again that eliminating static charge and cleaning an LP are two en... 
Does anyone have any experience with a Sutherland Little Loco?
Sebrof, do you have any idea what PL did to either the LL or the Sussuro to make them compatible? Because the Sussuro manual warns against mating it with most current drive phono stages.