I need to make a device, something like relay, but which will, when plugged to +12V, connect input and output, but for only 0.5 seconds, and then disconnect, although it is all the time connected to +12 V
(My friend told me that he had seen some circuit about this on the Internet, but hadn't been able to find it...)
(My friend told me that he had seen some circuit about this on the Internet, but hadn't been able to find it...)
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