Electronics research and development engineering for all of my working life. While i may not comprehend all of the electronics ramifications I do fully understand my vintage of chips and their capabilities. Some things I may have forgotten but i try to keep up with the industry.
I had the pleasure to work on low voltage level to very hi voltage level. Some of my design I am sure is still flying somewhere around the world. That is all I AM allowed to say and I am proud of my accomplishments in this field.