Karate Kid Quick Sketch.

This is a quickie sketch of an old anime I remember seen back in the 70's. It was some sort of Karate kid kind of story, the kid's dad got kill by a baddie and he is looking for the guy to avenge him. So the deal is that when he put his dad's karate uniform top (gi) and black belt, he would turn into a badass. Anyway, the pose is the one he would adopt just before he started to kick ass. The shirt had some sort of symbol, but it is been so long since I saw it that I just made something up. Anyway, I have done searches on old anime from the 70's but can't find it. Hopefully someone may remember something like this.