new here

Many of us here wilbe happy to explain how to use your 'scope. I asusmne you know the basics -- a 'scope displays a graph of the input voltage against time. You can think of it like this (and it's fairly accurate for older, non-digital 'scopes). The spot of light on the screen is produced by an electron beam hitting said screen. The beam is deflected vertically by the input signal, there wille ne a gain contrl calibrated in 'volts/cm'. If you have a vertyical defleciton of 2.5cm and a setting of 2V/cm, then tha's a total fo 5V. The beam is moved horizotally by a ramp voltage from the 'tiomebase' circuit'. This has a control calibtated in time/cm (so perhaps 20us/cm). So if you see that 2 points of interest on the waveform are 3.4cm apart and the timebase is running at 2ms/cm, then that's 6.8ms between them. There's a lot more to it, of course. Some 'scopes have all sorts of interesting extra facilites whcih are very useful but which may confuse you when starting out. Post the make/model of the 'scope and it's likely somebody hnows it :-). I don't know what your electronic background is like, but I am still going to suggest you look at a book called 'The Art of Electronics' by Horrowitz and Hill. It's not cheap, but it's very well explained and it covers most (but not all) areas of electronics. -tony