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Oscilloscope recommendation?
looking at buying myself a cheap portable scope for use when teaching and troubleshooting a bot. Was originally thinking about eBaying an old HP or Tekt, but buying one sight unseen is giving me the heebie-jeebies.
Keep seeing some of the ARM based scopes (agptek, jyetech, others): does anyone have any experience with anyone of these? Should I bypass these and just get an OWON or something similar?
Requirements are 2 channels, < $200, no PC needed, fast enough to watch PWM outputs going to servos and/or motor controllers, ability to trigger (as opposed to freerunning).
(or does anyone have a good working HP or Tekt looking for a new home?)
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We can help FIRST improve the system, but we can't just blame them and wait. - Siri [more] 
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