RE: mistracking for 500mm straight tonearm

Posted by John Elison (A) on October 20, 2016 at 23:55:00

In Reply to: RE: mistracking for 500mm straight tonearm posted by Heifetz on October 20, 2016 at 22:53:35:

If you move the null-point closer to the center by increasing underhang as shown in the graph above, inner groove distortion will increase.

The graph below shows the lowest possible distortion for a 500-mm tonearm with zero offset.

The only way to decrease distortion is to introduce an offset angle and move the base of the tonearm to the proper overhang. The graph below shows the optimal offset and overhang for a 500-mm tonearm. It requires an offset angle of 10.771-degrees with overhang of 8.043-mm.

If you want to play with the numbers yourself, you can download my spreadsheet at the following link:

Tonearm Alignment Geometry Spreadsheet (Open in New Window)

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Follow Ups Full Thread

Topic - mistracking for 500mm straight tonearm - Heifetz 12:45:32 10/20/16 (11)

RE: mistracking for 500mm straight tonearm - John Elison 15:31:39 10/20/16 (8)

RE: mistracking for 500mm straight tonearm - Heifetz 02:20:41 10/22/16 (0)

RE: mistracking for 500mm straight tonearm - Lew 11:23:07 10/21/16 (4)

RE: mistracking for 500mm straight tonearm - Heifetz 02:18:57 10/22/16 (0)

RE: mistracking for 500mm straight tonearm - John Elison 12:28:35 10/21/16 (2)

The scariest moment with an RS-A1 - Lew 18:56:25 10/21/16 (1)

You can say that again - Dave Pogue 07:35:43 10/23/16 (0)

RE: mistracking for 500mm straight tonearm - Heifetz 22:53:35 10/20/16 (1)

RE: mistracking for 500mm straight tonearm - John Elison 23:55:00 10/20/16 (0)

overhang or underhang with respect to the spindle? - Lew 13:32:41 10/20/16 (0)

Radiotron Designers Handbook - slider 13:22:48 10/20/16 (0)

Follow Ups

RE: mistracking for 500mm straight tonearm - John Elison 23:55:00 10/20/16 (0)

RE: mistracking for 500mm straight tonearm

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