Félix Díaz wrote:
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For digital work is better a logic analizer

Sometimes. I have had one fault in 20 years I couldn't find with a 100Mhz scope and a bit of ingenuity. Maybe I don't work at the cutting edge then ?

If you REALLY learn how to "fly" a decent even analogue oscilloscope you can accomplish a heck of a lot. Most people I meet don't understand the delayed trigger facility properly.

Of course a DSO is even nicer, but I can't afford one of those (though Velleman's kit DSO seems to work very well, we bought one for our trip to Egypt and it was a lifesaver)

Steve