So I decided to document the Lynx II 5V regulator mod because a lot of people have done it, but a lot of the documentation is in german.   Background: This is how to install a 5V Regulator or DC-DC converter into your Lynx II to improve the 5V regulation. The original parts are prone to failure and aren't a great design in this day in age. When the original parts fail, the regulation circuitry fails and pumps 9V into the rest of the circuitry - not good. The original 5V mod called for a LM