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Ortofon Turntable Cartridge Alignment Protractor Tool
Ortofon Turntable Cartridge Alignment Protractor Tool

Ortofon Turntable Cartridge Alignment Protractor Tool

Cartridge Alignment Protractor
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Ortofon Cartridge Alignment Protractor

This plastic Ortofon protractor is a reliable way to ensure proper alignment of your standard half-inch mount cartridge of any brand. The goal is to avoid tracking error that especially occurs as your needle plays songs towards the inner part of the record, called inner groove distortion or IGD.

from Ortofon:

Ortofon cartridge alignment protractor

An alignment protractor is used to find the correct distance from stylus tip to tonearm pivot.

When aligning a cartridge for tangency using the alignment protractor, it is essential to remember that you are attempting to align the cantilever (and, hence, the stylus), not the cartridge body. There is no guarantee that the cantilever is perfectly aligned within the cartridge body, so simply aligning the cartridge body will not necessarily produce the desired result.

Furthermore, many cartridge bodies have non-parallel sides, making tangential alignment of the cartridge body with the lines of tangency on the gauge virtually impossible.

An alignment protractor is a plastic template onto which are printed the null point(s) and lines of tangency against which the cartridge should be aligned. The template is placed over the turntable's spindle (made possible via a spindle-sized hole drilled in the template) and placed against the platter.

Cartridge must be adjusted until the cantilever is parallel to the set of parallel lines. And this should be achieved for both the indicated points. When the cartridge's longitudinal axis is parallel with the horisontal lines, tracking error will be at a minimum.

Download "How to align a cartridge using the alignment protractor"

5 Stars
Ortofon cartride alignment protractor
This is a simple, inexpensive alignment tool. I had no idea that my cartridge was out of alignment. Being able to see the cartridge alignment at the beginning and at the end of the record allows you to know if you have the correct overhang, which I did not. Very effective & simple-to-use. Great price for an improvement in tracking and sound quality.
Helpful?  3 of 3 Found Helpful
Reviewed by:  from Onalaska, WA. on 5/16/2012
5 Stars
Easy to use,crisp lines are easy to see, best price I found on the internet, shipped immediately.Made a minor modification by drilling out the spindle hole just slightly to accomodate my spindle.
Helpful?  3 of 4 Found Helpful
Reviewed by:  from Grand Canyon Arizona. on 5/12/2011
5 Stars
Ortofon cartridge alignment gauge
Works very well. Simple to use.
Helpful?  2 of 2 Found Helpful
Reviewed by:  from Hot Springs Village, AR. on 4/14/2015
5 Stars
What an easy tool to use. I was downloading and printing out bits of paper that were wrong. This just works. I discovered that my original headshell was not mounted correctly at all when using this to align my second one.
Helpful?  1 of 1 Found Helpful
Reviewed by: (Verified Buyer)  from New Zealand. on 9/11/2016
5 Stars
Bought this along with a new drive belt & AT cartridge. I knew there was a problem with the previous cartridge installation but not how to fix it. As stated by the other reviewers, this is a simple to use tool and helped get the cartridge placement sorted out and my music playing beautifully again.
Helpful?  1 of 2 Found Helpful
Reviewed by:  from Atlanta, GA. on 5/5/2013
5 Stars
Alignment Protractor
Simple to use. A tool every turntable owner should have!
Reviewed by:  from NC. on 4/24/2017
5 Stars
Nice protractor
does exactly what it is supposed to do. cartridge is aligned and working great!
Reviewed by: (Verified Buyer)  from Tallahassee. on 12/17/2017
5 Stars
Excellent tool!
I don't trust the accuracy of the paper protractors that you can print off the internet. This plastic protractor is solid, easy to use, and long-lasting. A good buy!
Reviewed by:  from Michigan. on 2/21/2018

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