Mark Saunders, who posted his email above, is a great help. I had several discussions with him before buying my machine. And, then . . . .I bought a pulse amplifier from him. He's very knowledgable and seems to have about everything. He could even have various panels on you machine repainted, and he has silk-screen masks to make all the lettering come out perfectly. I was not that particualr, and my machine is no great looker. But it works, so it's fun to play with. I promise you won't regret talking with Mark.