If you want to maximize your chances of reproducing the results, you will use identical apparatus and methods to what the original study used. That is often not possible to do just from reading the paper.
If only it were so. Often important parts of the protocol exist only in a hand written entries in a lab notebook. Because very few people are reproducing experiments and it is lots of extra work and jornals have limited space all the required details are rarely included. This is a big part of the problem. The typical work around is to contact the original reaseach to fill in the missing details.