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Vinyl Asylum Welcome Licorice Pizza (LP) lovers! Setup guides and Vinyl FAQ. |
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Vinyl Asylum Welcome Licorice Pizza (LP) lovers! Setup guides and Vinyl FAQ. |
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In Reply to: In this case ... posted by Garth on November 13, 2006 at 11:08:21:
Hi - finding this thread (and a similar one a few days ago) very informative. I have been trying to digest John Elison's alignment calculator spreadsheet with some limited success, but would appreciate some help with a few questions.Firstly - is overhang solely dependant on the difference between mounting distance and effective length? If so, which is the best to finetune overhang?
I have built a second DIY tonearm a la Schroeder (Model 1), but unfortunately have never had (and probably never will) get the opportunity to see the real thing. My "Mark I" arm had a slotted headshell which allowed some twist and translation of the cartidge to achieve alignment.
"Mark II" is more like the Schroeder, with a single screw holding a cartridge mounting plate.
On this arm, I can alter mounting distance (at the moment) and offset (and VTA, azimuth). I assumed that with those variables I would be able to achieve most alignments. In practice I can get close to Baerwald, but not dead on. Adjusting mounting distance (pushing the mounting board around the plinth) is pretty imprecise. Do I need (or would I be better) to slot the arm wand so that I can vary the longitudinal position of the cartridge mounting plate? Of course this will likely have other ramifications regarding strength/stiffness of the arm, so I dont want to do it unnecessarily.
Any thoughts, coments appreciated
Cheers
Brian
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Follow Ups
- More newb questions... - Kiwi Brian 11/14/0602:26:10 11/14/06 (21)
- Re: More newb questions... - jnorv 06:20:41 11/14/06 (18)
- Actually there are four unknowns. - Garth 07:36:10 11/14/06 (15)
- I don't thinik so - jnorv 20:17:12 11/14/06 (14)
- Yes, but for a given linear offset. - Garth 20:33:47 11/14/06 (13)
- Re: Yes, but for a given linear offset. - John Elison 05:17:34 11/15/06 (12)
- Yes, I meant as a design parameter. - Garth 07:18:35 11/15/06 (11)
- At least for the Baerwald alignment - jnorv 15:41:44 11/15/06 (8)
- It is true of ANY null points one chooses - Garth 20:37:32 11/15/06 (6)
- It has been a while since I took Variational Calculas - jnorv 09:10:18 11/16/06 (5)
- See, change the null points and you change at least the effecive length. - Garth 11:51:51 11/16/06 (4)
- For Baerwald's difinition of minimum distortion - jnorv 16:42:29 11/16/06 (3)
- Re: For Baerwald's difinition of minimum distortion - John Elison 21:01:38 11/16/06 (2)
- True, but obviously they are no different in terms of ... - Garth 22:15:14 11/16/06 (1)
- Re: True, but obviously they are no different in terms of ... - John Elison 15:39:20 11/17/06 (0)
- Re: At least for the Baerwald alignment - John Elison 19:45:04 11/15/06 (0)
- Re: Yes, I meant as a design parameter. - John Elison 08:42:48 11/15/06 (1)
- So what? - Garth 09:09:00 11/15/06 (0)
- The best tonearm.... - John Elison 06:47:24 11/14/06 (1)
- Yes, that's why they are so popular. (nt) - Garth 07:48:27 11/14/06 (0)
- Re: More newb questions... - Garth 04:51:13 11/14/06 (1)
- Thanks Garth - Kiwi Brian 02:38:10 11/15/06 (0)
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