.PS
cct_init

# Usual defs...
qrt=dimen_/4;
hlf=dimen_/2;
dim=dimen_;

source(up_,AC); capacitor(right_); dot; diode(down_); dot; ground
move left_ dim
line right_ 2.5*dim; dot

move left_ hlf; dot
capacitor(up_); dot
{line right_ hlf; dot; " $V_\mathrm{out}$ (DC)" ljust_}
diode(left_)

"\tiny Doubler" at (2*dim,-0.5*dim)
.PE