\documentclass{article}% voss bsp340.tex
\usepackage{pstricks}
\usepackage{pst-circ}
\pagestyle{empty}
\begin{document} 

\psset{intensitycolor=red,intensitylabelcolor=red,tensioncolor=green,%
  tensionlabelcolor=green,intensitywidth=3pt}
\begin{pspicture}(-1.25,0)(13.5,9)
  \circledipole[tension,tensionlabel=$U_0$,tensionoffset=-0.75,%
         tensionlabeloffset=-1,labeloffset=0](0,6)(0,0){\LARGE\textbf{=}}
  \wire[intensity,intensitylabel=$i_0$](0,6)(2.5,6)
  \diode[dipolestyle=thyristor](2.5,6)(4.5,6){$T_1$}
  \wire[intensity,intensitylabel=$i_1$](4.5,6)(6.5,6)
  \multidipole(6.5,7.5)(2.5,7.5)%
    \coil[dipolestyle=rectangle,labeloffset=-0.75]{$L_5$}%
    \diode[labeloffset=-0.75]{$D_5$}.
  \wire[intensity,intensitylabel=$i_5$](6.5,6)(6.5,7.5)
  \wire(2.5,7.5)(2.5,3)
  \wire[intensity,intensitylabel=$i_c$](2.5,4.5)(2.5,6)
  \qdisk(2.5,6){2pt}\qdisk(6.5,6){2pt}
  \diode[dipolestyle=thyristor](2.5,4.5)(4.5,4.5){$T_2$}
  \wire[intensity,intensitylabel=$i_2$](4.5,4.5)(6.5,4.5)
  \capacitor[tension,tensionlabel=$u_c$,%
    tensionoffset=-0.75,tensionlabeloffset=-1](6.5,4.5)(6.5,6){$C_k$}
  \qdisk(2.5,4.5){2pt}\qdisk(6.5,4.5){2pt}
  \wire[intensity,intensitylabel=$i_3$](6.5,4.5)(6.5,3)
  \multidipole(6.5,3)(2.5,3)%
    \coil[dipolestyle=rectangle,labeloffset=-0.75]{$L_3$}%
    \diode[labeloffset=-0.75]{$D_3$}.
  \wire(6.5,6)(9,6)\qdisk(9,6){2pt}
  \diode(9,0)(9,6){$D_4$}
  \wire[intensity,intensitylabel=$i_4$](9,3.25)(9,6)
  \wire[intensity,intensitylabel=$i_a$](9,6)(11,6)
  \multidipole(11,6)(11,0)%
    \resistor{$R_L$}
    \coil[dipolestyle=rectangle]{$L_L$}%
    \circledipole[labeloffset=0,tension,tensionoffset=0.7,%
      tensionlabel=$U_B$]{\LARGE\textbf{=}}.
  \wire(0,0)(11,0)\qdisk(9,0){2pt}
  \tension(12.5,5.5)(12.5,0.5){$u_a$}
\end{pspicture}%

\end{document}
