\begin{circuit}2

% Amplificador
\ov1 {$K$} - {} {} {}

%admitancia 3
\atpin ov1+
\- 3 l
\.1
\- 2 l
\cc\nl \R3 {$Y_3$} l
\- 2 l \P1

% Cables a la admintancia 4
\atpin .1
\- 2 d \P2

%admitancia 4
\nl \R4 {$Y_4$} d
\- 8 d \P3

% Cables a la admitancia 1
\atpin P1 \.2
\- 1 l

% admitancia 1
\cc\nl \R1 {$Y_1$} l

%Conectores
\- 1 l \P4
\connection1 {$V_I(s)$} c l

% Cables al capacitor5
\atpin .2
\- 2 d

% admitancia 5
\nl \R5 {$Y_5$} d
\vtopin P3

%Admitancia 2
\atpin .2
\- 1 u
\nl \cc \R2 {$Y_2$} u
\- 1 u
\htopin .1

%Admitancia 6
\atpin .1
\- 1 u
\nl \cc \R6 {$Y_6$} u
\- 1 u
\htopin ov1O
\vtopin ov1O


% Salida
\atpin ov1O
\.3

\atpin .3
\- 1 r
\connection2 {$V_O(s)$} c r

% K
\atpin ov1-
\- 2 d \.4
\- 4 r

\nl \spring1 {$R_{K1}$} r
\htopin ov1O
\vtopin ov1O

% Segundo resistor
\atpin .4
\cc\nl \spring2 {$R_{K2}$} d
\vtopin P3

% Conectores
\htopin P4
\connection3 {} c l

\atpin P3
\htopin ov1O \- 1 r
\connection4 {} c r

% Tierra
\atpin P3
\gnd1

% V_A y V_B
\atpin .1 \shift 0.3 -1.7
\put {$V_B(s)$}
\atpin .2 \shift 0.3 -1.7
\put {$V_A(s)$}

\end{circuit}