How do I set anti skate on Nottingham Anna arm????

Jbello

I have tried putting it in every position with the same result, it skates to the middle. I am really baffled. Thanks for your help with this.

It sounds like you are trying to use a blank disc to set the anti-skate. I never was able to get that to work either as the weight to neutralize is MUCH too high (this method ignores the friction of the groove).
The simplest way to start IMHO is to set the anti-skate weight at a reasonable starting point and inspect the (L/R)angle of the cantilever as you raise and lower the stylus, then adjust the weight up and down until the cantlever deflection is neutral.
There are much more sophisticated methods which require special discs or equipment, but I don't find this adjustment to be super critical.

Don't use the blank groove on the Nottingham platter "dust cover". As per Tom Fletcher:

"set the anti-skating so that the arm slighlty stalls at the leadout groove before gently moving towards the spindle".

You could always buy a copy of the Hi-Fi News test record with the tracks for setting anti-skating. I have one, but don't care to use it. I just do what Tom suggested.

Oz

Fully agree with Oldears and Ozzy. The blank disc method is flawed in principle.

The antiskate tracks on the HFN&RR test record mentioned by Ozzy are also flawed. It's easy enough to use the three "tracking test" tracks on side 2 to adjust antiskate, but the method described by Oldears is equally effective.

Antiskate is a compromise adjustment that can never be "perfect", so there's little point in going crazy over it. Once you've gotten accustomed to the sound of your (nice!) new rig, you can fine tune it by listening to music.

If you notice that your cart. is mistracking in one channel only, that is an indication that the anti-skating needs adjustment. If I remember correctly (and I sure if I am wrong someone will correct me) the inner groove wall is the right channel and the outer wall has the left channel information. So, say the cart. is breaking up in the left channel. That would indicate that more tracking force is being applided to the inner wall; so you'd increase the anti-skating force to compensate. Conversely, if it was breaking up on the right channel you'd decrease the Anti-skating force. This is an issue with my Shelter 90X. Tracking near the mfg. limit, the anti-skating has to be close or it will break-up in one channel or the other on the inner grooves near the label.