PCB tool hole design guide
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2022-04-20

In PCB design, some holes seem insignificant, but without these “tool holes”, the board will not achieve the expected function or even be manufactur…

What is the difference between an analog multimeter and a digital multimeter
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2022-02-17

A multimeter is an electrical measuring instrument used to measure electrical parameters such as voltage, current, and resistance. Not all multimeters are the s…