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Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Wow am I glad you posted that ghostman, I hadn't realized that a cap could show correct capacitance but still have bad charging characteristics, revealed by an ESR meter. I feel like it could be a wasted exercise to test the unit without using an ESR meter now, but unfortunately the only ones...
I suspect crutschow is correct - that one of the power smoothing caps has failed.
As I said, the noise is remarkably consistent in character, even on a flat line, when the probe is disconnected and the input is set to GND - i.e. the function generator is NOT being used. In fact it doesn't...
Hello,
I am an MCU enthusiast and have just invested in an Oscilloscope to help me through the analogue side of things.
I bought a basic LS OS-5020G from eBay. I think it may be slightly malfunctioning so I am looking for some reassurance or advice.
Basically, the trace seems to be noisy. I...
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