% Author: Dr. Matthias Jung, DL9MJ % Year: 2022 \begin{circuitikz}[american] \ctikzset{ resistors/scale=\getDarcImageFactor, capacitors/scale=\getDarcImageFactor, inductors/scale=\getDarcImageFactor, diodes/scale=\getDarcImageFactor, } \draw(0,0) to [european resistor, name={myR}, o-*] ++(2,0) coordinate(o1) to [short] ++(0.5,0) coordinate(o2) to [short, -*] ++(0.5,0) coordinate(o3) to [short, name={h1}, -*] ++(1,0) coordinate(o4) to [short] ++(0.5,0) coordinate(o5) to [stroke diode, -*] ++(1.5,0) coordinate(o6) to [short,-*] ++(1,0) coordinate(o7) to [C,-o] ++(2,0) coordinate(o8); \draw(o1) to [european resistor, -*] ++(0,-2) node[rground](){} to [short] ++(0.5,0) coordinate(u2) to [short, -*] ++(0.5,0) coordinate(u3) to [short, -*] ++(1,0) coordinate(u4) to [short] ++(0.5,0) coordinate(u5) to [short, -*] ++(1.5,0) coordinate(u6) to [short] ++(1,0) coordinate(u7) to [european resistor] (o7); \draw (myR.north) node[anchor=south]{ZF=\qty{10,7}{\mega\hertz}}; \draw (o8) node[anchor=south]{NF}; \draw(o3) to [vL, name={myL}, invert, tunable end arrow={Bar}] (u3); \draw(o4) to [C] (u4); \draw(o6) to [C] (u6); \draw[dashed](myL.core west) -- (myL.core east); \draw[dashed, gray] (o2) -- ++(0,0.5) coordinate(h2) to [short] (h2-|o5) -- (u5) -- ++(0,-0.5) coordinate(h3) to [short, name={h4}] (h3-|o2) -- (o2); \draw[gray] (h4.center) node[anchor=north]{$f_\mathrm{res}\neq \mathrm{ZF}$}; \end{circuitikz}