Wood burning is a popular hobby which can become quite expensive. A quality wood burning system consists of: 1. A pen or selection of pens and 2. A power supply (station). I decided to invest in a series of Razertip wood burning pens simply because they were available at a local Lee Valley Tools store (they also have a 1-year unconditional warranty – if I end up destroying a pen with a home-built supply then we will find out just how unconditional the warranty is). The pens are available for ~$30 each, which can become a significant investment if you want more than one or two. The stations run for $165 and up, which is the same price as six pens! So lets ditch the station.