john_gordon
Responses from john_gordon
| Turn table speed variation question Sometimes artefacts of the piano tuning process can cause perceived frequency variation, as each note has multiple strings, and the instrument uses a tempered tuning.The ideal is a single decaying note on a single plucked or struck string, a guita... | |
| Set Overhang on arm w/adjustable tracking angle Doug,I know there was a large variation in that cartridge dimension in the "good old days" but I was under the impression this had more or less standardised on 9.5mm. So aligning the pivot to that dimension on the assumption it will be within a mm... | |
| Set Overhang on arm w/adjustable tracking angle Garibaldi,Doug has has given an excellent summary. The only point I would make is that your arm should have 17.31mm overhang not 14mm.Peter,It is interesting that few of the current arms with the facility to rotate and slide the cartridge choose t... | |
| VTA and SRA? Yogiboy,There's lots of stuff recently posted here on Audiogon (search SRA if you want to know more). The vinylzone link is mostly a simple and straightforward explanation of the terms.The other one, from Absolute sound, is confusing and vague, an... | |
| Stylus Rake Angle Atmasphere:Thanks for that. I was obviously on a different track regarding the terminology of record cutting lathes- the meaning of groove depth, cutterhead, centre, etc. It is a good example of why familiarity with specific terms in unfamiliar a... | |
| Stylus Rake Angle Csontas: If we must continue:John, have you read this article in it's entirety yourself? It corroborates every single point I've made without fail! I'm now wondering what your motive is in participating in this discussion.Yes I have. I read it whe... | |
| Stylus Rake Angle Peterayer and Stringreen, Sorry to veer off on to record cutting. To get back to the OP. The reason why there is an issue with regard to SRA and VTA is that they affect different things. An appreciation of what each term actually means helps to un... | |
| Stylus Rake Angle Atmasphere: Take it as a definition unique to the technology that 'groove depth' means how deep the groove is with no signal.I understand that. It is the reference point. A silent groove has a fixed depth and smooth sides. If the cutterhead were t... | |
| Stylus Rake Angle Sorry - the article is from Practical HIFI not HIFI Answers - (from the days when there were too many hifi mags to keep track of...)Csontos: I perhaps shouldn't have mentioned cantilevers per se, as opposed to the function of the cantilever. But h... | |
| Stylus Rake Angle I've found a1981 article in my "files" which explains things better than I've been able to, and uploaded it on to my blog:Vertical Tracking Angle Explored - Keith Howard, Hifi Answers 1981. | |
| Stylus Rake Angle Csontos, If the cartridge manufacturers want to refer to SRA as VTA and vice-versa, so what? They can call it what they wish, as can you, but the terms are distinct, and in adjusting every cartridge varying one varies the other. VTA in a cartridg... | |
| Stylus Rake Angle Csontos, you said:You are mistaken. VTA has nothing to do with the angle of the cantilever. The angle of the stylus relative to the cantilever can vary wildly from one cart to another and therefore result in huge differences in cantilever/surface ... | |
| Stylus Rake Angle Atmasphere,Surely the groove depth changes with signal? A right channel signal for example must cut into and out of the lacquer at 45 degrees. I can see that a heated cutting stylus will help the process, but then does that affect the final profil... | |
| Stylus Rake Angle Raul The analog medium is full of imperfections and we have to deal with in the best way we can. Sometimes I think is an endless enterprise.At the end each one of us have its own targets and MUSIC sound reproduction and each one trade offs choosed... | |
| Stylus Rake Angle With regard to the distinction between SRA and VTA, there is also an equivalent distortion to Horizontal Tracking Error if the VTA is not that at which the record was cut. This Vertical Tracking Error is distinct from SRA and will influence tracki... |