The Modern GDO is a take on the old Grid Dip Oscillator. Of course, not having any valves, it in inaccurate to call this a 'grid' dip oscillator...so, in this case, 'gate' dip oscillator is more appropriate.
The original article was published in the May 2003 issue of QST, and can be downloaded from the ARRL website, here.
Thanks to Bob, WB7DMX, I have provided some members with PCBs for this project. I will document the build on this page.
