zxcvb Posted July 29, 2016 Posted July 29, 2016 I built the circuit below on my breadboard. I've checked every connection and it doesn't work. The thing I didn't know how to do was connecting the output (a LED) and the input. (a button) I did something pretty random and, no surprise, it doesn't work. My question is how do I connect the input and output and can I do it with a button and a LED? Also, I've used 3.3k resistors instead of 3.9k resistors. Is that bad? Reference: the multivibrator was bought from http://www.kynix.com/Detail/1165415/HC4538.html
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