Sounds like a new belt would take care of the speed problem. The tracking forse of the tonearm should either have a dial on the pivot structure and/or the couter-weight should be adjustable, probably by rotating it. Most Duals had both. http://www.compassnet.com/concept/tables/CS415-2.htm
http://www.compassnet.com/concept/tables/cs410.htm
http://www.dual-reference.com/
Dave ![](http://www.audioroundtable.com/emoticons/smiley.gif)