.PS
cct_init

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

Org:Here
line right 2*dim
move down
line left 2*dim
"$-\infty$" at Org+(-qrt, -dim/2)
"$+\infty$" at Org+(2*dim+qrt, -dim/2)

move to Org+(qrt,-dim)
dimension_(right 1.5*dim, -5mm__, "1 m", 6mm__)

move to Org+(qrt,-dim)
line -> up
"$|V_i|$" at last line.center ljust
move to Org+(1.75*dim,-dim)
line -> up
"$|V_o|$" at last line.center rjust

"\tiny atten" at (2.2*dim,-1.3*dim)
.PE