https://devzone.nordicsemi.com/f/nordic-q-a/18997/why-the-output-amplitude-decreases-when-c-decreaseHello, I was trying to build Clapp oscillator with a JFET J310 (FYI: link text )as it is shown in the figure. Capacitor C is variable and goes from 20 pF to 285 pF. I have connected C3 in series to get suitable equivalent capacitance. With theen-USTelligent Community 13Sat, 14 Jan 2017 10:57:03 GMThttps://devzone.nordicsemi.com/thread/73433?ContentTypeID=1Sat, 14 Jan 2017 10:57:03 GMT137ad170-7792-4731-bb38-c0d22fbe4515:adbc03a9-c87e-4805-9c71-f91d0fd5cdd4H&#229;kon Alseth<p>I would recommend posting this on stackoverflow or similar forums that has a generic electronics section: <a href="http://electronics.stackexchange.com/">electronics.stackexchange.com/</a></p> <p>I will not try to answer your question directly, but in general when it comes to simulations vs. reality; there&#39;s always something that will differ. Why? It can be many things, like component variances/tolerances, variances in production, temperature, and other factors. Since this is fairly low frequency, I do not think long wires has a huge impact, but in general; keep your lines short and simple. Good luck and have a nice weekend!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/73434?ContentTypeID=1Sat, 14 Jan 2017 10:16:51 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6ed71dad-c932-404e-bc3f-56e0fa96aefeRK<p>What has this got to do with Nordic ?</p><div style="clear:both;"></div>