Buying a used oscilloscope can save you hundreds of dollars, but it requires careful testing to ensure you aren't inheriting someone else's "blown front end" or calibration nightmare.
Deeper memory allows you to capture longer time windows while maintaining a high sample rate, which is crucial for finding intermittent glitches. buy used oscilloscope
When looking for a used unit, prioritize these specifications based on your needs: Buying a used oscilloscope can save you hundreds
Connect a probe to every channel and attach it to the built-in probe compensation output (usually a small metal tab on the front). You should see a clean, steady square wave. buy used oscilloscope
This determines the highest frequency signal you can measure. For general hobbyist work, aim for at least 50–100 MHz .