Electronics > Beginners
Oscilloscope Bandwidth Question
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David Hess:
Small signal emitter follower oscillations in audio circuits can be above 100 MHz but will usually but not always be visible with a 100 MHz oscilloscope so there is some value in a higher bandwidth instrument.  Output stage and operational amplifier oscillations are usually at a lower frequency so not a problem.  However an analog oscilloscope will display these oscillations better than a DSO (unless 12 bits) if they are at a low level and you know to look for them.

Analog oscilloscopes work fine for transient response testing unless you are testing something like an oven controller.

I would look more for instruments which are easy to use or at least not annoying.  Two channels plus an external trigger input will be fine.
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