I'm a 65 year old electronics engineer with practical (office & factory) experience. I've designed circuits & PCBs & equipment housings for optimum cooling. I've run a reliability testing lab. I've been a Technical Manager & QA Manager and I've run my own business. I started electronics at age ten. Now I'm "retired" and mess with electronics as a hobby. I hasten to add that I'm hopeless at theory and have no interest in mathematics. My designs tend to be "empirical" so I'll probably be asking for help here! However, I do have a lot of practical experience to offer and I'm a "lateral thinker": I can often see a fault cause or solution that others might not spot. I'm also a technical writer and editor.