> input impedance of modern scopes is 1MegOhm ... attenuating adapter with a 2.2Meg series resistor
AND ~~ 30pFd. This against 0.66Meg divider makes a 8KHz high cut. Fine if you know; but a beginner may be wondering why his amp-build won't pass the top octave.
I have a rigol digital 4 channel and 70mhz max. I got the 4 channel from advices as in most cases you need to probe in parallel at least two places.
Most rigol can be hacked and you get 100mhz for example and all extra software locks.
