RE: Feikert alignment jig

Posted by flood2 (A) on July 5, 2015 at 21:17:42

In Reply to: RE: Feikert alignment jig posted by dirtyvinyl on July 5, 2015 at 16:37:18:

Ah, your previous picture only showed the template from the front. To get the true geometric pivot, you need to wrap some thin paper cylinders around the pin to eliminate any slop.

To check cantilever alignment with the body, just take a photo and start examining the cantilever axis with respect to a central axis. You just need to take care to ensure that your object is as close to the centre of the image as possible to minimise the effect of spherical aberrations distorting the straight lines.

" For antiskate, I currently am following HW's recommendation of no AS."

At the risk of causing inflammation... that certainly wouldn't be helping....but let's not go there!

The problem is not so much the lack of antiskate (as a mechanism) but how this affects azimuth stability - the off-centred counterweight provides a restoring force for azimuth, but the twisted wires also provide an inconsistent/non-linear force (partial antiskate) such that the azimuth may not be maintained in a consistent position (your arm being a univpivot); especially if your records aren't perfectly flat and centred.

As mentioned before (and others have also suggested) perhaps increase VTF a little bit and see if that helps - VTF of course will influence the mean VTA/SRA which may simultaneously solve your problem!

Regards Anthony

"Beauty is Truth, Truth Beauty.." Keats

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Follow Ups Full Thread

Topic - Feikert alignment jig - dirtyvinyl 08:43:43 07/05/15 (28)

RE: Feikert alignment jig - Mel 14:01:30 07/06/15 (0)

Thanks all, for advice - dirtyvinyl 12:10:34 07/06/15 (0)

RE: Feikert alignment jig - AJ 11:16:07 07/06/15 (0)

I use this.... - Cuernavaca 09:00:23 07/06/15 (0)

Reading all of the above - kavakidd 23:44:19 07/05/15 (0)

RE: Feikert alignment jig - painter27 18:05:15 07/05/15 (1)

RE: Feikert alignment jig - dirtyvinyl 19:16:40 07/05/15 (0)

RE: Feikert alignment jig - BPoletti 17:23:18 07/05/15 (3)

RE: Feikert alignment jig - dirtyvinyl 19:39:36 07/05/15 (0)

RE: Feikert alignment jig - dirtyvinyl 19:02:14 07/05/15 (1)

RE: Feikert alignment jig - BPoletti 19:13:47 07/05/15 (0)

RE: Feikert alignment jig - flood2 15:40:52 07/05/15 (16)

Define "correct azimuth",... - Lew 12:42:47 07/07/15 (5)

RE: Define "correct azimuth",... - flood2 14:20:47 07/07/15 (4)

Unipivots are "special" - Lew 17:33:17 07/07/15 (0)

RE: Define "correct azimuth",... - dirtyvinyl 14:39:36 07/07/15 (2)

RE: Define "correct azimuth",... - Lew 10:40:33 07/08/15 (1)

RE: Define "correct azimuth",... - dirtyvinyl 18:13:34 07/08/15 (0)

RE: Feikert alignment jig - dirtyvinyl 16:37:18 07/05/15 (9)

RE: Feikert alignment jig - flood2 21:17:42 07/05/15 (0)

Two suggestions, one comment - teenage diplomat 19:09:05 07/05/15 (7)

RE: Two suggestions, one comment - dirtyvinyl 19:28:13 07/05/15 (6)

RE: Two suggestions, one comment - teenage diplomat 19:42:24 07/05/15 (1)

RE: Two suggestions, one comment - Lew 12:58:29 07/07/15 (0)

RE: Two suggestions, one comment - Analog Bob 19:41:48 07/05/15 (3)

RE: Two suggestions, one comment - dirtyvinyl 20:55:30 07/05/15 (2)

RE: Two suggestions, one comment - PAR 14:10:46 07/06/15 (1)

RE: Two suggestions, one comment - dirtyvinyl 17:42:44 07/06/15 (0)

Follow Ups

RE: Feikert alignment jig - flood2 21:17:42 07/05/15 (0)

RE: Feikert alignment jig

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