# Different arrows at two port and adder in CircuiTikZ

the following circuitikz snippet

\documentclass[tikz]{standalone}

\usepackage{circuitikz}

\begin{document}
\begin{circuitikz}
\draw (0,0) node[below]{$x(t)$} to[amp, >] (4,0);
\draw (4,0) to[short, i=] (adder.west);
\end{circuitikz}
\end{document}


produces

how do I get the arrow left to the adder closer to the adder as with the amp?

Using the standard tikz arrow

    \begin{circuitikz}
\draw (0,0) node[below]{$x(t)$} to[amp, >] (4,0);
\end{circuitikz}


is at the correct position but has the wrong arrow shape.

The trick is using the anchor=... option to position (any) node along your path.

For example:

\documentclass[tikz]{standalone}
\usepackage{circuitikz}

\begin{document}
\begin{tikzpicture}
\draw (0,0) node[below]{$x(t)$} to[amp, >] (4,0)

(Notice that standalone expects a tikzpicture, and it needs additional arguments to "wrap" correctly a circuitikz. But given that a circuitikz is exactly the same as a tikzpicture, I choose the easy way out.)