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The Tecktronix 465 is a very good CRT dual channel scope. Make sure you get working probes (I say working because it is easy to blow a probe with RF/HV) and good scope probes can be pretty expensive on their own. You need an x10 and a x1 probe or a x1/10 combo and should have as many probes as your scope has channels. I don't think you'll get a LCD scope for under $150, but they are nice and compact.Umm... maybe i should have mentioned my price range is a maximum of $150...
Remember that a 10Mhz squarewave contains harmonics up to 100Mhz and beyond. A 10Mhz squarewave will look like a sinewave on a 10Mhz bandwidth scope.What I would like to know, and maybe some of you can tell me, is what is the advantage of 100mhz over 60mhz or even 15mhz.
speakerguy79 said:If you are doing anything digital with a PIC at frequencies like 20MHz then you will want 100MHz or more. A square wave has as its component frequencies at X (the base frequency), then at 3X, 5X, 7X, etc (the harmonics). It takes several of the harmonics for it to look like a decent square wave. So you'll want 100MHz minimum for say a 20MHz signal.
Marks256 said:What does "double beam" or "dual Channel" mean? Does it mean that it can monitor 2 frequencys at a time? So, instead of just being one line on the display, there could be up to 2?
Marks256 said:What kind of o-scope do you have, Nigel? If you don't mind me asking.