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Homemade Doorbell - Issues with transistor and battery
I'm making a doorbell and i've tested it on my breadboard where it works perfectly fine. However, when I transfer it to a soldered circuit I have some issues. The switching of the transistor is ok, ...
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Make a switchable steady 5 V output circuit
I am looking to make a very accurate steady 5V power supply that can be switched on and off using the digital IO pins on an Arduino. I planned to use a 9V power supply connected to a 2N2222 transistor ...