john_gordon
Responses from john_gordon
| Why use a super accurate cartridge protractor Hi TonywinscAs Tobes says, you would have to use a mirrored protractor for the reasons he states.For the SME 309, it should be LofgrenA/Baerwald DIN. But importantly, it should be a TWO point protractor, not an arc, as you will have to make adjust... | |
| Why use a super accurate cartridge protractor Hi Dan_edThe Mint Protractor you refer to, accurate to the 2nd digit of a millimeter does that mean to 1/100 of a mm? And what did you mean by ...aligning horizontal azimuth and effective length with any precision This is one of my points that,... | |
| Why use a super accurate cartridge protractor DertonarmI hope you have an enjoyable holiday, and, of course I agree with you that everyone should choose their alignment according to their record collection - would that were always the case. And for your collection you have chosen correctly. W... | |
| Why use a super accurate cartridge protractor Dear Nikola,I find it harder to see (and hear) things as time marches on. But I try.As you say, the protractor is only as good as the widest tolerance. Which is my point. As DT says, spindles vary, by 0.25mm. So there we actually have a number. Bu... | |
| Why use a super accurate cartridge protractor Dertonarm,Löfgren just used euclidean geometry.... He was however unquestioned the first to muse and care about giving phono playback an optimized geometric solid basis.As you say DT, thankfully we can stick to Euclid and don't have to concern our... | |
| Why use a super accurate cartridge protractor Moonglum,After the first 60 tries (yes you read that correctly) I was still unhappy with the final cart position which often ended up with an estimated 0.2mm offset from target in any given direction(!!!). I finally got the perfect result (and was... | |
| Why use a super accurate cartridge protractor Cocoabaroque,Are we not taking it on faith that the great masters of cartridge alignment(!)--Lofgren, Baerwald, Stephenson, etc knew what they were doing even though they disagree amongst themselves? You don't have to take anything on faith, it is... | |
| Tonearm Geometry and Setup NikolaA system like the Sony would be ideal especially if it was programable, such that the force could be adjusted to vary at different points - I don't know if this is possible.What is perhaps more interesting is that a mechanism of that kind mi... | |
| Tonearm Geometry and Setup Nikola, I normally use a test record with tracks of increasing level, and listen with headphones, as that way I can hear better when there is mistracking. You have to hear the mistracking to know when it is equal on both channels. then re-adjust t... | |
| The best alignment for 7 inch singles? DownunderThere are no LP alignments ideal for 7" records. Least bad would be Stevenson IEC.If you wish to get the best from a 7" record, draw yourself a protractor with nulls at say 53mm and 73mm (which should accommodated singles with inner radiu... | |
| Tonearm Geometry and Setup Dear Nikola,My comment a while back was rather tongue in cheek, not myself having a surfeit of decks. I make do with one set up and don't worry too much about it, though I do like my anti skate set up well... "Best" and "bad" are a different matte... | |
| Why use a super accurate cartridge protractor Hi ThekongDertonarm saidthe alignment I did choose actually minimizes distortion in the last 2/3 ( not just last 1/3) of the record groove's radius He should have said ...the alignment I did choose reduces distortion.... The alignment reduces it. ... | |
| Why use a super accurate cartridge protractor Hi Nandric,you saidBut there must bethe corresponding max. distortion at some other 'points'.Well it seems to me that we should worry about those also.I have never seen any numerical values for those in this forum. It may be the case that while I ... | |
| Why use a super accurate cartridge protractor Hi Photon46 In the cartridge setup instructions with the Vacuum State Guru protractor, Allen Wright says that after checking many cartridge alignments with final adjustment tunings done by ear, there is a consistent trend of finding settings about... | |
| Tonearm Geometry and Setup Dear Nandric,If the arm has a range of adjustments then the alignment can be whatever the user chooses - in that sense the arm does not drive the geometry.The Dynavector arm in your example could be mounted a couple of millimetres closer to the sp... |