nsgarch

Responses from nsgarch

Uber quiet tubes for C2300 pre
You want to skip the 12AX7's altogather IMO (not that there aren't some quiet ones) but for REAL quiet and smooth, grainless, flat frequency response, you want matched triple-mica black plate 5751's, with the copper support rods and rectangular ge... 
What causes turntable rumble
"Doc" was what all the kids and faculty called him. I think the "Rusty" must have come from the people out at Hanscom Field, where he arranged for us to use the Link trainer . . . . a very colorful man. 
What causes turntable rumble
Colonel "Rusty" Draper, who for those who don't know, developed the Inertial Guidance System for our early guided missiles, was also the faculty advisor for the MIT Flying Club (which still blows my mind!) My favorite story (of his) was when he th... 
What causes turntable rumble
Eldartford, I didn't know you were an alum! What year did you graduate, what course?Wiffle grooves are not just a feature of air bearings (and BTW, many air bearings DO NOT use them, opting instead for multiple inlets in the manifold.) Grooves are... 
Goldmund Studio
Satch, sorry, my TT is mounted the same as yours -- TT shelf into conc. block wall, on constrained layer damping platform.I've assisted with three of these mods, mine, plus another Studietto here in town, and remotely, a Studio restoration in Aust... 
What causes turntable rumble
Elizabeth, I think A.J. van den Hul and my mechanical engineering colleagues at MIT would strongly disagree with you ;--)Neil 
What causes turntable rumble
A plain journal bearing does not have metal-to-metal contact when the shaft is turning. The turning shaft functions as a pump to keep a film of oil between the metal surfaces.Not true unless (A.) The bearing material is of the bronze oil-impregnat... 
Goldmund Studio
The Pabst motor is a deal breaker. Besides rendering your TT a total loss if it quits, it's impossible to keep the speed accurately adjusted. The quartz-controlled JVC motor is repairable/replaceable and still one of the best DD motors out there (... 
What causes turntable rumble
Could be time to clean and re-lubricate the main bearing ;--) And I have found the best sh!t on the planet (in terms of blackest audio background) is van den Hul's spindle/bearing oil. It contains suspended particles of zirconium oxide which act l... 
Is Monster cable getting better?
Monster, in the early/mid 80's had the best single ended interconnect on the planet. It was the "Shotgun" design invented by Bruce Brisson, and Monster is still using it (as are a lot of other cable makers, because the patent has long ago expired.... 
Best Power Cord for Phono Stage
A standalone phono preamp (tube or ss) should have a separate PS to be worth its salt (with a VERY FEW expensive exceptions;--) -- and those (separate power supplies) will have RFI filtering built in.A phono'stage' customarily refers to a built-in... 
Benefit of cable lifters on 100 wool carpet.
I agree, cable lifters are definitely an 'Emperor's new clothes' item ;--) Except in two instances:1.) Always use them when you have an electric radiant heating grid under the floor (and it's turned on ;--) and2.) Sometimes, lifters can make a dif... 
Stillpoints
Ebm (and others ;--)So much depends on how the Stillpoints are actually implemented/installed, meaning:Pointed up or down?Using what accessories?Are the accessories fastened or just "sitting there"?Are they in a configuration of three or four?I fi... 
Purist Audio, Venustas or Aqueous
Inpieces -- to your question, a tentative 'yes', but it would help to know what your system consists of. 
Boy, do I need help
Dennis, obviously I don't know the technical design details of either the Esoteric OR the Coda, but my 'audio intuition' tells me something will be compromised; and I think I may have now infected you with that notion! Which is OK, because it lead...