Hi Phil,
I am currently ready to wind T507 for my QMX and I am glad this subject came up. ?I am confused myself. ? But reading the inputs I think I figured this out. ? Looking at the picture of the bino, this my take of how to wind the transformer. ?
Start winding the hole on the right using the winding step used for winding L401. ? When that is done then rotate the bino 180 degrees so the left hole is now on the right. ?Then wind what was the left hole in the same way as the previous hole. ? By doing this both sides of the bino are wound in the same direction, counter clockwise. ?I will be giving it a go shortly.
Ed. KN6NZW
Ed KN6NZW