Improving poor man's ET827 oscilloscope

Note: Should you decide to do this, wear gloves, antistatic bracelet and work in a well ventilated room. Don't look at me - I don't care.
Description: Adding a BNC (coaxial) connector to improve signal quality. Wanted to do this for a while. And today just decided that it is a good time. I did not prepare at all (aside from purchasing a BNC-to-RCA connector). And I did not know if it is going to improve anything. Using a tiny 10 MHz chip oscillator to push this oscilloscope almost to the limit. The improvement is actually quite nice.

[@WanderLucioGomes]

Don't get mad at me, but the most correct waveform for this active crystal is a square wave. Unfortunately, these BNC oscilloscope probes that we bought in China are turning a square wave above 5MHz into a sine wave. Conclusion, your multimeter was showing more correctly with the common probe. I'm saying this because I tested it.

[@cristianmartinelli9475]

Cosa hai fatto?

[@pitsit1884]

Вставил bns разъём