I'm thinking of getting an oscilloscope. I'd like to be able to actually look at the amp output instead of just guessing; but I am bit overwhelmed by the choices and the how-to use them videos always seem to assume a bit more knowledge. It would just be for working on my own personal amps so it wouldn't get a lot of use but I would rather not discover next year that for $25 more I could have gotten one that would do what I need then. I'm also nervous about plunking down $300 or more and then accidentally touching the probe to the wrong spot and frying it. I've read through a lot of threads on buying cheap new ones or used ones but there are always multiple different models with numbers really close together. I've looked at the Analog Discovery 2, which is appealing because it also does the signal generator part; I'm assuming that an oscilloscope isn't of much use without a signal generator. Plus it would take less space to store when not in use. I also did a fair amount of reading on the Rigol DS1102E If I go the route of a physical scope then what do I look for in a signal generator to go with it? I appreciate any suggestions of new or used models to look for as well as any resources for how to use one for people that have zero experience with one.