I use a tek TDS420, 4 channel 100 mhz DSO and an ANT-8 8 channel logic
analyzer.  Both have their strengths.

It's always bound by your resources though.  Buy as much scope as you can
afford, because not being able to see a problem leaves you very much in the
dark.

I have a LOT of test equipment, some is dedicated to a specific task, others
are more generic.  I wouldn't trust a USB or PC based scope solution, only
because I haven't seen one that can hold a candle to a real scope.
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