% Author: Dr. Matthias Jung, DL9MJ
% Year: 2021
\begin{tikzpicture}
    \def\R{2}
    \draw(-\R,0) circle (\R);
    \draw( \R,0) circle (\R);
    \draw[very thick] (0,0)
        -- ++(2.5*\R,0);
    \draw[very thick] (0,0)
        -- ++(-2.5*\R,0);
 \end{tikzpicture}