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Fwd Bias LEDs as Varicaps/Varactors


 

Read the Info from Hans,



And especially this comment with calculations at the bottom...(Jerry)
Adam SQ5RWQ

Note that connecting two LEDs in series cuts C to 1/2.? Also note that graph showing that C increases with voltage, opposite of reverse bias and that C is much greater.? I tried this with my tester with quite similar results.? Neat...
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Chuck, W5USJ (ex K2OFN)
Point, Rains Co, TX? EM22cv

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