% Author: Stephan Kregel, DG1HXJ
% Year: 2021
\begin{circuitikz}[european]
    \draw(0,0)
        to [short, o-*] ++(1,0) coordinate(c1)
        to [short] ++(2,0) coordinate(c2);
    \draw(c1)
	    to [R, l=$R_1$, *-] ++(0,-2) 
	    to [R, l=$R_2$, -*] ++(0,-2) coordinate(c3)
        to [short, -o]   ++(-1,0);
    \draw(c3) 
        to [short] ++(2,0)
        to [R, l_=$R_3$] (c2);
\end{circuitikz}