JYE Tech Forum

@upsss Thanks for the tip. If I didn't have the step-up cable, I would definetly prefer to use a step-up module like that.

Lots of great ideas here. Maybe this could be simpler and faster solution for those like me, who aren't that skilled. For DSO Shell I had bought a cheapish step-up USB cable (Unnlink brand) and was using it with a powerbank. Since the cable is too bulky and there is enough space in the DSO Shell, I ...

Thank you for the reply. It is a cheap TDA7492 amp board powered with a 4.74A Delta Electronics brick power supply. The negative of the power supply is referenced to the ground. And I was powering the DSO Shell with a powerbank (using a 9V step up USB cable). I forgot to mention the very important p...

Let me also add a photo of my genuine DSO Shell and ask one more question: What is the DC rating for the C1?

Thanks

I have just fried the STM32, while I was testing a digital amp. The amp had an output of ~5Vpk (600Hz sine wave) and was connected to a 8 ohm speaker. I connected the probe to the positive and the ground to the negative output of the amp, which was a mistake big enough to destroy the oscilloscope im...