- Joined Nov 4, 2014
Hi, just wondering what may be the cause of audible buzzing noise when using an oscilloscope probe?
No, the source terminal for this MOSFET was not at ground potential . I think there might have been some typo in the lab instructions. For now this is a good reminder to check before making any changes to the live circuit.Was the source terminal of the MOSFET tied directly to the circuit common? How was the circuit grounded to the test equipment?
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