Hi Jim. Yes the 536 should be very useful to you. However, the problem will be where to get one. It is arguably one of the rarest of Tek models. And no, you can’t have mine! lol. However you can use any other model to do the same thing. The 536 was designed to be much more precise for phase measurements. But that doesn’t stop you from using any model with a good horizontal amplifier either. I have been looking for certain 502 sheet metal parts on eBay, and I am surprised that there are so few 500 series on there. When I was in the business there were a lot of very reasonably priced examples. Not so any more.
John Williams