Some references, e-mail addresses do not work, see Ref. 8, I hate this https://en.wikipedia.org/wiki/Colpitts_oscillator 7 S. Sarkar, S. Sarkar, B. C. Sarkar. _"Nonlinear Dynamics of a BJT Based Colpitts Oscillator with Tunable Bias Current"_ (http://www.ijeat.org/attachments/File/v2i5/E1662062513.pdf) . IJEAT _ISSN_ (https://en.wikipedia.org/wiki/International_Standard_Serial_Number) _2249-8958_ (https://www.worldcat.org/search?fq=x0:jrnl&q=n2:2249-8958) , Volume-2, Issue-5, June 2013. p. 1. 73 de Ulrich _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.