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Who believes me and does not want to watch the part with video evidence that the problem is widespread, but who needs a solution, click on the timecode 24:03. An example of incorrect operation of the module with a dead battery in a transistor tester • In-circuit ESR meter from a transistor ... Where it all began • Master kit NM8032 with digital indication. Not quite the right solution to the problem from the author of the channel Corona Virus • Converter XL 6009 An article on a similar problem with the XL6009 microcircuit, where commentators pounced on the author with the accusation that the problem is far-fetched https://micro-pi.ru/xl6009-step-up-dc...