I have built several of Roy's line and phono preamps and they went together quite well. He doesn't provide step by step directions, but he does give you all the information you need if you have basic knowledge of electronics. He provides you with board layouts and parts lists, schematics and wiring diagrams. He has posted building guides on several of the preamps, and has lots of pictures showing internal layouts on the tubes4hifi website. The diagrams do show how to wire the transfomers, and the PCB layouts show the proper orientation of the diodes, transistors and electrolytic capacitors. I have the PH14, coupled with the SP9 preamp, it's an incredible phono stage. I'm using mine with a good moving coil cartridge, I've never heard vinyl sound better! You will hear everything the recording has to offer if the rest of your system is up to it, I have a couple LP's that astonish me every time I spin them.