Nude Turntable Project
My post is declined as 'inappriate or inflamatory' probaly because I used the expressions 'hooker','prostitute' and 'whore' in the context of the logic of substitution. Substitution and quantification are interdependant so by way of introduction I mentioned 'Vienna', 'Wenen' (Dutch), Bec (Serbo Kroatian) and 'Wien' (German). The logical rule is this: whatever is true about the object refered to will stay true under substitution of names with the same reference. I called those co-refering names. Now my point was that Lew is wrong with his assumption regarding the expression 'hooker'. One may dispute the 'meaning' of those expressions but they all refer to the same, uh, profession. It is obvious that different languges have different expression for the same profession but it is also obvious that they can be substituted for each other such that the sentence in which they occur has the same sense and/or reference. The reference of an statement being arguable the truth value of the sentence. The other theory imply reference (of a statement) to something called 'fact'. Now one can feel insulted if called 'prostitute' but what can be the 'sin'of an word or an expression? The moderators obviously discrimante between 'neat words' and, say,'filthy kinds' but which linguist would make such an division? The other members also used the word 'hooker' so I assume that either 'prostitute' or 'whore' are the quilty one according to our moderators. BTW the same argument apply for 'nude' versus 'naked'; both refer to ,uh, the same thing. |
Nandric, Are the moderators THAT prudish? Shame on them. Halcro, Good on you that you did not agree with Ct to use compliant footers. We are not so far apart in our thinking. I discussed with Bill Thalmann your finding that the cage is ferrous and therefore attracted by a magnet. Bill agreed with me that it must be meant as an EMI/RFI shield to protect the outside world from RFI generated from the TT101. (The quartz crystal oscillator is a prime source of RFI. Maybe that's why the clock oscillator is also tucked up into the upper metal structure, away from the rest of the circuitry.) As to the fact that you've observed an effect of the motor on your new steel plinth, I would submit that the ferrous outer cage would also soak up the magnetic lines of force from the motor and also protect the outside world from the magnetics. (But I find it odd that the magnetic effect would be so strong, maybe from the transformer, in some way?) Grounding the cage provides a way to drain RFI to ground, as well as electrical grounding. If you don't ground it, it cannot work so well as a shield. |
Lewm - Halcro, Good on you that you did not agree with Ct to use compliant footers. We are not so far apart in our thinking. Lewm/Halcro please tell me how my SP10 TT setup is compliant ? The SP10 is bolted into the base at both ends as is the 20 - lb armpod using a recessed bolt. Both the SP10 and the Armpod are easily converted to spikes. Here is a pic for you. http://cgim.audiogon.com/i/vs/i/f/1368395046.jpg Interested in your comments on how to improve it. Its been a neglected TT for too long. I haven't got around to making an aesthetic base for it yet. cheers. |
Chris, Pneumatic or 'compliant' footers are designed solely to try to prevent the passage of Structure-Borne feedback into the turntable plinth/bearing/platter/tonearm/cartridge system. Suspended turntables are an attempt to achieve the same result and can be somewhat successful compared to the alternative? Suspended floor systems....whether timber-framed, steel-framed or reinforced concrete.....are all subject to Structure-Borne feedback which can suffer frequency transmission between 4-10 Hz and depending on amplitude.....can cause physical movement in the flooring system. The more a compliant footer is compressed....the less successful it is in attenuating these low frequencies yet the less the footer is compressed....the more movement (in all planes) is possible. That's why a Minus K stand is 'tuned' to specific weights and is able to move alarmingly when pushed? Because of the problems in effectively designing an integral 'compliant' or 'sprung' footer system for turntables.....most new racks and shelving systems utilise a Stillpoints type of ball and cup isolation as well as constrained layer damping. This Stillpoints type of footer is used for turntables, speakers and even amplifiers these days. As you know that my turntable is placed on a masonry wall-mounted shelf and avoids any form of Structure-Borne feedback......I'm puzzled by your suggestion to 'improve' my set-up by using compliant footers? In my situation....all this will do is introduce possible movement of the footers due to weight shifting of the tonearm and cartridge as well as temperature and humidity variations? There is no possible 'up-side' to compliant footers if there is no Structure-Borne feedback. Now if your system is sitting on a suspended floor-mounted rack or shelving system........there may be advantages to your method of support? :-) |
