lewm

Responses from lewm

Long and Short Arms. YOU KNOW THEY FIT a Luxman PD444.
“Adjustable VTA is a fad”????? You can’t be serious. If you had written that VTA on the fly is a marketing ploy, I’d have agreed, but in this day and at our age, would you really be willing to set VTA with a set screw whilst holding the tonearm a... 
Voltage regulators and input impedance
If the 6550 is acting as parti of a voltage regulator circuit in the PS, the slight impedance mismatch you cite would not stress it. More importantly, what is the input Z of the Modwright at 1kHz? There’s not much music at 50 Hz. Historically, AR ... 
Fidelity Research MC201 for an Ortofon AS-212?
Yes, but the way that I am familiar with is by working backward from the resonant frequency. First determine Fr. Then use the cartridge compliance to calculate effective mass. (The equation relating Fr, C, and M is readily available on line.) If y... 
If my Kenwood KD decks can't be repaired?
I think there is every possibility that with some patience and diligence you can find someone qualified and willing to work on your Kenwood TT's.  It might help here if you would state what are the problems, exactly,  Some issues can be very simpl... 
How best to eliminate LP warps
Pindac, You seem to have more than average problems with wobbly spindles caused by excessive wear in the bearing shaft, or your friends do.  I can't recall ever having observed it.  
Perimeter Ring Clamps: Yay?, Nay?, Sources??
Elliott, Not that I want to talk you into using a peripheral ring, but what was it about Twoleftears' reference that turned you off so thoroughly to the whole idea of a peripheral ring?  It turned me off to "Wayne's Audio", more than anything else... 
Perimeter Ring Clamps: Yay?, Nay?, Sources??
To add a highly specific experience of my own, I have a Kenwood L07D. Kenwood made an accessory outer ring for the L07D, the DS20, which goes to show how old the idea is. When you install the DS20, you are also supposed to activate a switch on the... 
How best to eliminate LP warps
I see Jazz guys’ point, if you assume that a warp represents a local stretching of the vinyl, such that there is excess material in the horizontal plane and this forces the warp to occur. Like pavement expansion on hot days. If we assume that that... 
Perimeter Ring Clamps: Yay?, Nay?, Sources??
Have you actually placed the ring on yourTT81? Because I am otherwise dubious of the fit. Also, many have reported a danger to the stylus and cantilever when placing the cartridge at the rim of an LP. Finally, what is the mass? I would not automat... 
Can a turntable ever have enough isolation?
blue collar, Where do you live? Are you in a large city, in an apartment, out in the country, in a private home? Is your system sitting on a well supported floor? These are all factors that enhance or diminish the role that isolation can play in e... 
How best to eliminate LP warps
I recently bought a second copy of the Cardas test LP. I’ve been using it for years to warm up cartridges that either need break in or have been out of use for long periods, which happens when you own 5 turntables and 2 systems. Anyway, the new co... 
How best to eliminate LP warps
petgo, I guess the only clue an end user would have that a cartridge is internally misaligned would be if he attempts to set azimuth electrically (equal crosstalk in each channel) and this result requires tilting the cartridge in either direction ... 
How far is your SUT from your Phono Pre/Preamp?
Up above in this thread, someone suggested experimenting with the physical orientation of your external SUT in relation to the power transformer of your Lamm phono stage. In addition to playing with grounding, have you tried that yet? There is a p... 
I finally got a record cleaning machine. First thoughts.
Mijo, Shure showed exactly what you say, that charge can momentarily reside on one side of an LP while the charge on the other side is minimal (probably not zero).  Which is also what I wrote.  So there is no conflict between your findings and wha... 
I finally got a record cleaning machine. First thoughts.
I won’t debate the effect of cleaning on static, but your 78s are presumably not made of PVC and so perhaps have a lesser tendency to accumulate charge. Also, the paper label is neutral in the triboelectric series and so is unlikely to be involved...