% Author: Stephan Kregel, DG1HXJ
% Year: 2022
\begin{circuitikz}
    \ctikzset{
        transformer L1/.style={inductors/coils=3, inductors/width=0.6},
        transformer L2/.style={inductors/coils=4}
    }
    \draw(0,0) node[transformer core, american](T1){};
    \draw(T1.A1) to [short, -o] ++(0,0);
    \draw(T1.A2) to [short, -o] ++(0,0);
    \draw(T1.B1)
        to [short] ++(0.5,0)
        node[npn, tr circle, anchor=B](npn1){};
    \draw(T1.B2)
        to [short] ++(0.5,0)
        node[npn, tr circle, anchor=B, yscale=-1](npn2){};
    \draw(npn1.E)
        to [short, name={h1}] (npn2.E);
    \ctikzset{
        quadpoles/transformer core/inner=1,
        quadpoles/transformer core/width=0.6,
        quadpoles/transformer core/height=1.5,
    }
    \draw(T1) ++(6,0) node[transformer core, american, rotate=180, transform shape](T2){};
    \draw(npn1.C) -| (T2.B2);
    \draw(npn2.C) -| (T2.B1);
    \draw(T2.A1) to [short, -o] ++(0.6,0);
    \draw(T2.A2) to [short, -o] ++(0.6,0) coordinate(c0);

    \draw(T1-L2.midtap)
        to [short,*-*] ++(0.5,0) coordinate(c1)
        to [short] ++(0,1.5)
        to [R] ++(0,2.5) coordinate(c2);
    \draw(c2)
        to [short, *-] ++(-1,0)
        to [C] ++(0,-1)
        node[rground](){};
    \draw(c1)
        to [short] ++(0,-1.5)
        to [R] ++(0,-2)
        to [short,-*] ++(2.5,0)
        node[rground](gnd){}
        to [short,-o] (gnd-|c0) coordinate(c5)
        node[anchor=south](){--};
    \draw(c2)
        to [short, -o] (c2-|c5) coordinate(c7)
        node[anchor=south](){+};
    \draw(T2-L2.midtap)
        to [short,*-*] ++(-1,0) coordinate(c4)
        to [C] ++(0,-1)
        node[rground](){};
    \draw(c4) 
        to [short] ++(0,2) coordinate(c6)
        to [american inductor, name={l1},-*] (c6|-c7);
    \draw(h1.center) 
        to [short, *-] ++(0,0)
        -| (gnd);
\end{circuitikz}