\expandafter\ifx\csname doTocEntry\endcsname\relax \expandafter\endinput\fi
\doTocEntry\tocsection{1}{\csname a:TocLink\endcsname{1}{x1-10001}{QQ2-1-1}{Oscillating Circuits}}{1}\relax 
\doTocEntry\tocsubsection{1.1}{\csname a:TocLink\endcsname{1}{x1-20001.1}{QQ2-1-2}{Passive Oscillators}}{1}\relax 
\doTocEntry\tocsubsection{1.2}{\csname a:TocLink\endcsname{1}{x1-30001.2}{QQ2-1-3}{Active Oscillators}}{7}\relax