Hello all! I am working on a lab for a class and we are given a simple self-biased N-channel JFET circuit: Rd =3D 4.7k, Rs =3D 1k, Rg =3D 2M, Q1 =3D 2N4860, V= dd =3D +15V. Then we are given the scenario: Vds =3D 66.5mV, Vd =3D 15V, Vs =3D 14.9V. Assuming only one component can be bad, what is the likely problem? I built the circuit in MPLab and tried everything I could think of to recreate the voltages, but everything I tried does not work. Shorting Rd was my first thought, but that also results in Vds being 12.6V. What am I missing? Can anyone get me on the right track? I have shorted and opened all resistors, the only thing I can't do (or don't know how to do) is recreate a faulty FET. -- Sincerely, James Burkart *Filmmaker & Documentarian* *Burkart Studios* 925.667.7175 | Personal 415.738.2071 | Office *Web:* burkartstudios.com *Facebook:* facebook.com/burkartstudios --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .