Blog posts Thundergirl “Trudy” July 28, 2014 1:44 pm by Olav 2 Comments on Thundergirl “Trudy” Thundergirl “Trudy”. Made from Swiss Spruce and Flamed Ovangol. 650mm scale, 14fret and 0-fret OM/D size with Venezian Cutaway Great for Picking and Strumming! Enjoy!