lewm
Responses from lewm
| Precision Motor Controller The point is you don’t want a controller that varies frequency and/or voltage to provide AC to a micro-seiki that in and of itself is a controller, at least as I understand it. Furthermore neither the VPI nor the Walker might output enough watts t... | |
| Perimeter Ring Clamps: Yay?, Nay?, Sources?? I don’t understand. First, JP never suggested dumping Victor DD turntables. Second, in my experience the TT101 has been 100% reliable since JP repaired it. Or do you advocate dumping them because you may not be able to fit a ring? | |
| Precision Motor Controller What Dover said. An AC power regenerator might help, but neither the Walker nor the VPI is appropriate here. | |
| Perimeter Ring Clamps: Yay?, Nay?, Sources?? Elliott, I was looking at my TT101 with your quest in mind. As you know, the two platters present the same problem for fitting a perimeter ring. There is very little margin for error. In fact I can think of no “off the shelf” ring that would fit. ... | |
| How best to eliminate LP warps Pindac, Please forgive me if I offended you in questioning the idea that TT bearings and their shafts commonly wear in the horizontal or lateral direction. I only meant what I actually wrote, that I have never seen it or heard from others that it ... | |
| Perimeter Ring Clamps: Yay?, Nay?, Sources?? mulveling, I am surprised to learn that the Benz cartridges you named would have such strong magnets, because they also have high-ish internal resistance for an LOMC, which suggests that the coils have many windings, yet the output is "low". Thus ... | |
| Voltage regulators and input impedance I just want to correct what I wrote on 06-01. I guesstimated the output impedance of the PH5SE at 200 ohms, based on the recommendation to mate it with an amplifier of not less than 20K ohms input Z. In fact, if one applies the 1:10 rule of thum... | |
| Sumiko Songbird (High Output)/Music Hall MMF-5 One more vote against HOMCs, as compared to similarly priced LOMCs, MM, and MI. I stopped using them long ago; they just don't cut the mustard compared to good cartridges of other types, in my opinion, in my system. I owned and listened to Transf... | |
| Long and Short Arms. YOU KNOW THEY FIT a Luxman PD444. Too bad we've lost Chakster. He was a PD444 maven. I hope Putin didn't get him for his outspoken political remarks. More likely he is in Audiogon purgatory for selling stuff here or touting it here and selling it elsewhere. The Technics B500 i... | |
| Voltage regulators and input impedance Well, it’s not that the bass will roll off, although I guess it would at a barely measurable rate since the midrange input Z is stated to be 23K ohms, as that once you get below a ratio of 1:10 for output Z vs input Z, you start to lose more signa... | |
| Tonearms for a Luxman PD-444 As I recall, a hole drilled for the standard FR mount will also accommodate the B60. At least it does so for me. I only have one comment on the long list of possible tonearms. Some of the lesser expensive SAEC tonearms have an odd geometry. This ... | |
| Voltage regulators and input impedance Perhaps there’s a part failure or a bad solder joint in the VR circuit that results in excessive plate dissipation ( too much wattage) across the 6550. You need to have it examined by a competent tech or by ARC directly. My guess is the impedance... | |
| 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... |