One of my scopes (Tek 2213) I got from my late father-in-law, an electrical engineer. I also have an older R453. He passed about 10 years ago before I got into electronics... oh the conversation's we'd have if he were still around.
When I was just out of college, I built a variable DC power supply from a Radio Shack book... but it never worked. A few years later after I got married, he fixed it for me... I blew the voltage regulator during assembly. Still use it to this day and always think of him when I turn it on. In fact, a few months ago I modified it by lowering the overall voltage to give me better resolution. In doing so I had to look up the specs on that very voltage regulator that he fixed for me.
I used one of them a few months ago to calibrate a BBD chorus pedal, so I know the basics. But I need to get more familiar with using it.
When I was just out of college, I built a variable DC power supply from a Radio Shack book... but it never worked. A few years later after I got married, he fixed it for me... I blew the voltage regulator during assembly. Still use it to this day and always think of him when I turn it on. In fact, a few months ago I modified it by lowering the overall voltage to give me better resolution. In doing so I had to look up the specs on that very voltage regulator that he fixed for me.
I used one of them a few months ago to calibrate a BBD chorus pedal, so I know the basics. But I need to get more familiar with using it.

