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  1. Hello, I had make this - Improved short-circuit detector - http://electronicdesign.com/boards/improved-short-circuit-detector (based on http://www.diy-electronic-projects.com/p213-Beeper-to-find-short-circuits) and build it on testing breadboard. I used LM4871, because was cheaper then LM4861. It should be pin compatible as datasheet from Ti says it. My question-problem is, that I cannot make it working. I made it exactly as in schematics, but it is not working. Can please anyone help me to make it working? I have some suspect on shutdown wiring in the schematics, because daatasheet says, that should be connected to - to enable amplifier. for schematics which I use, please see attachment. Thank you very much, Jan
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