% Author: Dr. Matthias Jung, DL9MJ
% Year: 2020
% TJ301, TJ302
\begin{circuitikz}[step=\getDarcImageFactor cm]
    \tikzstyle{help lines}=[black];
    \draw[style=help lines] (0,-3) grid (8,3);
    \draw[ultra thick, black] (0,0) sin (2,3) cos (4,0) sin (6,-3) cos (8,0);
\end{circuitikz}