[G6ONEDave]

Forgot to do the instructions for the alignment protractor. This alignment protractor was originally provided by Practical Hi-Fi and the copyright was held by IPC Magazines Ltd 1980. It is printed on a plastic sheet.

The backing graph paper is 1cm squares with 1mm sub squares.

How to use
Ideally the sides of the pickup cartridge should be parallel to the horizontal lines of the protractor when the stylus tip is placed on either of the two alignment points (the centres of the cross within the circles). This can be acheived by checking the alignment at both points, then moving the cartridge forwards or backwards and also twisting it laterally within the headshell and re-checking as necessary. For headshells which obscure the cartridge sides, the front of the cartridge can be aligned with the lines provided. If it proves impossible to achieve alignment at both points, then line up at the inner position and get the outer one as close to correct as possible.

With some arms there is limited headshell adjustment, but sometimes the arm base position can be altered to achieve alignment as outlined above.

Other adjustments
Don't forget to ensure that the sides of the cartridge as seen from the front, are verticle to the record. The arm should also be near enough parallel to the record surface as viewed from the side. If not, spacers between cartridge and headshell, or an alteration in arm pivot height (where provided for) may be required.

Hope posts 17 and 18 are of help and I provide it with no connection to the original authors/copyright holders.