% Author: Prof. Dr. Matthias Jung, DL9MJ
% Year: 2026
\begin{circuitikz}
    \draw(0,0)
        to [piattenuator, l_={a.}] ++ (2,0)
        to [open] ++ (1,0)
        to [tattenuator, l_={b.}] ++ (2,0);
\end{circuitikz}