Good grief, no.
I was around in those early days, and had technical discussions with many people, including Jobs, the Tramiels, and my personal favorite, the late great
Gary Kildall.
Jobs certainly never had a hobby making electronic devices (Woz made the Blue Boxes, Jobs sold them), nor was he an electrical engineer anywhere. He dropped out after six months of college, and the only thing he got of value out of it was the infamous calligraphy class, which did serve him well.
Jobs didn't do anything at HP except gawk around as a student intern, and that's assuming he was even that much. At Atari, he managed to get put onto the night shift (mostly because of his lack of personal hygiene) so that no one would find out that he couldn't do anything. (They did eventually figure this out. As Pong engineer
Al Alcorn put it, "
Jobs never did a lick of engineering in his life. He had me snowed. It took years before I figured out that he was getting Woz to come in the back door and do all the work while he got the credit.")