Nottingham Space Deck owners - help needed


Greetings. I have been able to get very little info on this Spacedeck and Spacearm setup and have been learning, which isn't altogether a bad thing, but the journey has had its bumps, needless to say. I got this piece used and without ANY instructions! Can anyone confirm which protractor NAS recommends to align the cart on this table/arm? Sure would appreciate it, and also where one might come by such a protractor.

Thanks,

Anovak
anovak
I was given the Polaris alignment protractor when I bought a Nottingham dais new. It was easier to understand than the db systems one I also have. I used it on a horizon as well as the dais and it works good

http://www.russandrews.com/product-Polaris-Cartridge-Protractor-5040.htm
I had been using this one http://turntablebasics.com/ on all tables and arms. Chances that it's more superior than any supplied with turntable very high.