Setup – an easy task

Caution: Always bear in mind that cartridges are a very delicate piece of equipment and therefore must be treated with care.

We are not liable for any damage caused by using this Protractor!

General procedure

On the left hand first two photos you can see the both sides of the Protractor (Baerwald aka Lofgren 1 and the commonly known Lofgren geometry on the other side).

The two geometries are different in overhang
causing to have a different set of Null points.

Put the disk on the platter and put the gauge in place. Make sure the small pin of the gauge fits into one of the holes.

Aim with the gauge towards the arm pivot point.

Make sure you have correct alignment to the pivot point.

Read out the value on the gauge.

Check if you got the correct hole on the disk corresponding in range to the read out value.

If this is not the case turn the gauge to the correct hole and put it in place.

Adjust overhang so that you hit the value on the printed line at the point of the read out value of the gauge.

Then check for parallelity of the cantilever with the auxilliary lines at the two Null points. Make sure antiskating is set to zero!

In case the cantilever is not in parallel with theese lines in only one point then overhang was altered. Please readjust overhang and then go again through all the following steps.

Important notice for REGA owners:

Bear in mind that REGA uses a different set of parameters. In case you want to use this Protractor you need to install the REGA in 218 to 219 mm pivot-spindle!