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op-amp triangle wave, need help 
electro-tech-online.com | by Sparrow338 | Wed, Aug 26
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I've tried adjusting the values of the components and the best I can get the circuit to do is to make the LED fade on, put after that it just gets stuck on and doesn't fade back off. To do this I changed out the resistor that goes from pin 7 to ground from a 4.7k Ohm to a 1k Ohm.
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