Thanks Big Al, I'm glad I didn't or couldn't build it. Why is it when you need a bomb you can't build it and when you don't you're really good at it without knowing? Seriously, I really don't want to build a bomb. What is an amateur to do? I find science fascinating yet I'm not an expert. I think up a lot of ideas and sketch them without really knowing how to get any further, some are personal issues I really cannot help myself. I'm so very thankful someone answered my post. Thanks.