I used 1” copper pipe to make my cylinders. They will fit snugly on 3/4” PVC pipe. The PVC pipe will have to be sanded down to allow the copper pipe to fit. I drilled a small hole in the cylinder through the PVC pipe and soldered the wire (#14 enamel wire) to the cylinder. Wind the coils and tune according to the instructions. See diagram for details on this antenna. I used the information in Demonstration # 4 & #5 to construct this antenna. This antenna is described in Demonstration #5 (you can download Demonstration # 4 & #5 on another page on this web site).