% Author: Malte, DE7LMS % Year: 2022 % Modified by DL9MJ \begin{circuitikz} \pgfdeclarelayer{bg} % declare background layer \pgfsetlayers{bg,main} \draw (.2,1.4) -- ++(0,-2); \draw (-.2,1.4) -- ++(0,-2); \draw[dashed] (0,1.2) -- ++(0,-1.8); \draw (.2,1.4) arc[start angle=0, end angle=360, x radius=.2, y radius=.1]; \draw (.2,1.4-2) arc[start angle=0, end angle=-90, x radius=.2, y radius=.1] coordinate (bottom) arc[start angle=-90, end angle=-180, x radius=.2, y radius=.1]; \draw (bottom) -- ++(0,-.2); \path (.2,1.4) arc[start angle=0, end angle=45, x radius=.2, y radius=.1] coordinate (up right) arc[start angle=45, end angle=135, x radius=.2, y radius=.1] coordinate (up left) arc[start angle=135, end angle=225, x radius=.2, y radius=.1] coordinate (down left) arc[start angle=225, end angle=315, x radius=.2, y radius=.1] coordinate (down right); \path (down right) ++(2,-1) coordinate (down right end); \path[very thick, shorten <=-1pt, {Circle[length=2pt]}-, line cap=round] (up right) edge +(2,1) (up left) edge +(-2,1) (down right) edge (down right end) (down left) edge +(-2,-1); \ctikzset{inductors/thickness=1} \draw[very thick] (0,4+3) -- (0,2.7) to [cute inductor] (0,1.4); \draw (-0.25,2.0); \begin{pgfonlayer}{bg} \DARCmeasure{down right}{down right end}{-0.15,-0.3}{-28}{$\frac{\lambda}{4}$} \draw (0,1.4) coordinate(end); \draw (0,7) coordinate(start); \DARCmeasure{start}{end}{-1.55,0}{-90}{\rotatebox{90}{$\text{mech.}~\frac{5}{8}\lambda$}} \end{pgfonlayer} \end{circuitikz}