How to move elements with Circuitikz

Question

begin{tikzpicture}
    draw (0, 0) to[L, l=(L_1)] (0, 4);
    draw (2, 0) to[C, l=(C_1), *-*] (2, 4);
    draw (2, 4) to[R, l=(R_1), *-*] (4, 4);
    draw (4, 0) to[C, l=(C_2), *-*] (4, 4);
    draw (6, 0) to[R, l=(R_2), *-] (6, 2);
    draw[fill=black] (6, 2) to[diode, l=(D_1), -*] (6, 4);
    draw (8, 0) to[R, n=R3,  *-] (8, 2);
    node[right] at (R3.s) {(R_3)};
    draw[fill=black] (8, 4) to[diode, l=(D_2), *-] (8, 2);
    node[op amp, xscale=-1, yscale=-1] (opamp) at (12, 2) {};
    draw ($(opamp.out) + (-1, 0)$) to[short, *-] (opamp.out);
    draw ($(opamp.out) + (-1, 0)$) -- ($(opamp.out) + (-1, 1.2)$);
    draw ($(opamp.out) + (-1, 0)$) -- ($(opamp.out) + (-1, -1.2)$);
    coordinate (opamp plus) at (opamp.+);
    coordinate (opamp minus) at (opamp.-); 
    draw (opamp plus) -- (opamp plus|-(0, 3.2));
    draw ($(opamp.out) + (-1, 1.2)$) to[R, n=R4, -*] (opamp plus|-(0,3.2));
    node[below] at (R4.s) {(R_4)}; 
    draw (opamp minus) -- (opamp minus|-(0, 0.5));
    draw ($(opamp.out) + (-1, -1.2)$) to[R, l=(R_5), -*] (opamp minus|-(0, 0.8));
    draw (0, 4) -- (2, 4);
    draw (4, 4) -- (opamp plus|-(0, 4));
    draw (13.2, 4) -- (opamp plus);
    draw (0, 0) -- (9, 0);
    draw (9, 0) to[R, n=R6, ] (opamp minus|-(0, 0));
    node[below] at (R6.s) {(R_6)};
    draw (13.2, 0) -- (opamp minus);
    node[ground] at (8, 0);
end{tikzpicture}

So can anyone help me how to move resistors R4 and R5 to left like in the picture.Thanks in advance :)

Rmano · Accepted Answer

Path components are always drawn in the middle of the start and endpoints of the to command. So if you need a piece of wire, then a component,  you do state exactly that:
    draw (a) -- ++(0.5,0) to[R] (b);

So, as a tutorial point, I would write the op-amp piece of the circuit like the following. Notice that you can change the look of the circuit just changing one number — the rest will follow suit. So if you change the defupwardshift{1.0} you will have a taller circuit, and if you change the 1.5 in  draw (OA up) -- ++(-1.5,0) ... you will have a wider circuit, without having to touch any other number or coordinate around.
Heavily commented to show usage.
usepackage[siunitx, RPvoltages]{circuitikz}
begin{document}
begin{tikzpicture}[]
    % everything will be relative to the position of the op amp chosen here.
    % better use the `noinv input up` option than yscale=-1 so that the power supply
    % anchors are not updown!
    node[op amp, xscale=-1, noinv input up](OA) at (0,0) {ctikzflipx{texttt{oa1}}};
    % let's create the nodes above the op amp + and below op amp -.
    % I am defining the shift here to reuse it for the symmetric one.
    defupwardshift{1.0}
    draw (OA.+) to[short, -*] ++(0, upwardshift) coordinate(OA up);
    draw (OA.-) to[short, -*] ++(0, -upwardshift) coordinate(OA down);
    % we want the resistor a bit off to the left; I'll mark the cable end position
    % to reuse it on the other side. Just change the numbers here if you want
    % to adjust positions, the others branches will follow suit.
    draw (OA up) -- ++(-1.5,0) coordinate(tmp) to[R=$R_4$] ++(-2,0) coordinate(r4 left)
        % vertical connection in the same path to have a nice joined line, using
        % the perpendicular coordinate system: vertically down (r4 left), horizontally (OA down)
        -- (r4 left |- OA down)
        % the other R
        to[R=$R_5$] (tmp |- OA down) -- (OA down);
    % connect the op amp output
    draw (OA.out) to[short, -*] (OA.out -| r4 left) coordinate(OA out);
end{tikzpicture}
end{document}

Now change the upward shift to 0.75 and the first explicit wire to 2.5 and:

This technique makes your circuits highly reusable --- you can come up with a rich database of sub-circuits that can be readjusted and re-used easily. If you use explicit coordinates, you need to change lots of them to adapt the circuit.

js bibra · Answer

documentclass[10pt,a4paper]{article}
usepackage[utf8]{inputenc}
usepackage[T1]{fontenc}
usepackage{amsmath}
usepackage{amsfonts}
usepackage{amssymb}
usepackage{graphicx,tikz, circuitikz}
usetikzlibrary{calc}
usepackage[left=2.00cm, right=1.00cm]{geometry}
begin{document}
    begin{tikzpicture}
        draw 
        (0, 0)  to  [L, l=(L_1)] (0, 4)
                to  (2,4);
        draw 
        (2, 0)  to  [C, l=(C_1), *-*](2,4) 
                to  [R, l=(R_1), *-*] (4, 4)
                to  (8,4);
        draw 
        (4, 0)  to  [C, l=(C_2), *-*] (4, 4);
        draw 
        (6, 0)  to  [R, l=(R_2), *-] (6, 2)
                to  [diode,fill=black, l=(D_1), -*](6, 4)
                to  (8,4) coordinate(d2)
                to  [diode,fill=black, l=(D_2), *-] (8, 2)
                to  [R, l=(R_3),  ] (8, 0)coordinate(r3)
                to  (0,0);
        node[op amp, xscale=-1, yscale=-1] (opamp) at (12, 2) {};
%       draw ($(opamp.out) + (-1.5, 0)$) to[short, *-] (opamp.out);
        draw (opamp.out)   to [short,-*]   ++(-1.5,0) 
                            to ++(0,1.2) 
                            to[R, l=R4]     ++(1.6,0)coordinate[label=](r4)
                            to(r4)-|(opamp.+)--(opamp.+);
        draw (opamp.out)   to [short,-*]   ++(-1.5,0) 
                            to ++(0,-1.2) 
                            to[R, l=R5]     ++(1.6,0)coordinate[label=](r5)
                            to(r5)-|(opamp.-)--(opamp.-);
        draw(d2)-|(opamp.+) (r3)-|(opamp.-);

node[ground] at (8, 0){};
    end{tikzpicture}
end{document}

How to move elements with Circuitikz

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