john_gordon
Responses from john_gordon
Tonearm Geometry and Setup Nandric, you said:why are we not free to choose the zero points on the record radius independant of the tonearm used?You are, of course, as Dertonarm says, free to choose whatever null points you wish. The origin of the null points for the geometr... | |
SME 312S versus SME V-12 Mauidj No, I wouldn't think so. It's just so you are aware of it and that it might affect your choice if you want a particular alignment for whatever reason.John | |
SME 312S versus SME V-12 A point to note if using third party set up devices and not the specific SME protractors with these arms is that the V12 is LofgrenA/Baerwald IEC and the 312S is effectively Lofgren A/Baerwald DIN. In other words they have different nulls.John.. | |
Uni-Protractor Set tonearm alignment DertonarmAgain, since you were the one who brought it up, you said:If you think you can do better - go ahead design it.I already have - as soon as I saw the pics I knew you had missed the basic principle of the Dennesen, and, by extension, the und... | |
Uni-Protractor Set tonearm alignment DertonarmAllow me to return the rattle that you have thrown from the pram:You said:you don't really want me to tell you what additional breakdown torque is and why it does of course influence the skating force.If I didn´t wish to know I wouldn´t h... | |
Uni-Protractor Set tonearm alignment Dertonarm:you saidIf however the user does wish to align the given tonearm exactly to the geometry (especially the offset angle) the tonearm was designed with, then knowing the P2S and setting it precisely (IF possible ...) is important.Important ... | |
Uni-Protractor Set tonearm alignment Dertonarm:You said:If a phono protractor really is universal, it must automatically align regardless of the given mounting distance.I would agree with you in that, but I would disagree with you when you say thatSetting the mounting distance is don... | |
Uni-Protractor Set tonearm alignment HalcroI haven't used it, but I'm sure you are correct in assuming a different principle for the Feickert. If it has the facility to set or measure mounting distance, it is because it uses arcs which have to be referenced to a known pivot point.You... | |
Uni-Protractor Set tonearm alignment As an aside:Halcro, you asked (16th April):although something tells me that whilst the UNIprotractor 'arm' is not centred on the Spindle, there might be some mathematical formula which, when the micrometer is wound down to its minimum position, co... | |
Uni-Protractor Set tonearm alignment ThuchanI often sweep things under the mat.... Most people probably do too. Especially the hard things, like precision in areas where it is hard to be accurate or measure reliably - antiskate is one, and, for me, setting cartridge offset is another... | |
Uni-Protractor Set tonearm alignment Jazzgeneyou saidThe thing is if the anti-skate force differs from the beginning to the end of an LP, how can a constant weight compensation like the VPI weight on a string work correctly on the entire LP? It can't, I would think.If your antiskate ... | |
Uni-Protractor Set tonearm alignment MesaelSorry. I said The angle changes towards the centre not varying much, but under 7cm radius, the closer to the spindle it gets, the greater it becomes, until at 0 it is a right angle.. What this means is that the inward force trying to rotate ... | |
Uni-Protractor Set tonearm alignment Perhaps it might be a good idea to go back to basics. There are two aspects to this issue. One is to acknowledge what the force is and how it originates. Second to see how it manifests itself on a record deck. While we might call it antiskate, or ... | |
Uni-Protractor Set tonearm alignment Jazzgene, You said...Harry says in the manual that with every tonearm he's heard, it sounded better without anti-skate and heavier VTF.Perhaps so, but there can be issues with this method depending on the cartridge. The bottom line is that there i... | |
Uni-Protractor Set tonearm alignment Jazzgene,I have not heard your arm, but if you tell me it's a good arm and you prefer it without antiskate, I believe you.From the manual it appears that VPI recommend using a higher tracking force than might be otherwise used. In my post I mentio... |