\documentclass[tikz,border=10pt]{standalone}
\usepackage{circuitikz}
\begin{document}
\begin{tikzpicture}
\draw(4,2)--(4,0.1);
\draw(4,-2)--(4,-0.1);
\draw[very thick](3.8,-0.1)--(4.2,-0.1);
\draw(4.4,0.1)--(3.6,0.1);
\draw[->](3.85,-0.4)--(4.15,0.4);
\draw(3.4,0)node{$V_\textmd{C}$};
\fill[white](-7.2,-1.1)--(-7.2,-0.9)--(-6.8,-0.9)--(-6.8,-1.1);
\draw[very thick](-6.8,-1.1)--(-7.2,-1.1);
\draw(-7.4,-0.9)--(-6.6,-0.9);
\draw[->](-7.15,-1.4)--(-6.85,-0.6);
\draw(-7.6,-1)node{$V_{\textmd{B}}$};
\draw(-7,0)--(-7,-0.9);
\draw(-7,-2)--(-7,-1.1);
\draw[{<[scale=2]}-{>[scale=2]}](0.75,-1.95)--(0.75,1.95);
\draw(1.15,0)node{$V_{\textmd{CE}}$};
\draw[-{>[scale=1.5]}](3.75,2.5)--(2.25,2.5);
\draw(3,2.8)node{$I_\textmd{C}$};
\draw[-{>[scale=1.5]}](-6.25,0.75)--(-4.75,0.75);
\draw(-5.5,1.05)node{$I_\textmd{B}$};
\draw(0.25,0.65)node{C};
\draw(0.25,-0.65)node{E};
\draw(-1,0.25)node{B};
\draw(0,-0.5)--(0,-2);
\draw(-0.5,0)--(-2,0);
\draw (0,0) node[npn,tr circle]{};
\draw(0,0.5)--(0,2)--(2,2);
\draw(2,2) to [qvprobe] (2,-2);
\draw(4,2) to [qiprobe] (2,2);
\draw(-6,0) to [qiprobe] (-5,0);
\draw (-2,0)to[european resistor=$R_B$] (-5,0);
\draw(-6,0)--(-7,0);
\draw(-7,-2)--(4,-2);
\draw[<->](-1,-0.1)arc[x radius=0.75,y radius=0.75,
start angle=180,end angle=280];
\draw(-0.6,-1)node{$V_{\textmd{BE}}$};
\draw(0.1,-2) to node[eground2]{} (-0.1,-2);
\draw(-2,0) to[C=$C$] (-2,-2);
\fill[ball color=black](2,2)circle(0.1);
\fill[ball color=black](2,-2)circle(0.1);
\fill[ball color=black](0,-2)circle(0.1);
\fill[ball color=black](-2,-2)circle(0.1);
\fill[ball color=black](-2,0)circle(0.1);
\end{tikzpicture}
\end{document}