I have this one I got from a fellow forum member sometime ago, but never fire it up. It just needs to solder LEDs (included) and connected to the transformer, included as well. Oh forgot to mention: it has 12(!!!) almost unobtainable original Toshiba k170 jfets! This one was designed back when people enjoyed their life and creativity 🙂. Price is $170 shipped in US. Thank you for checking!