rectangle -10 0 90 70
//pie 80 10 100 30  90 30  90 10
//moveto 100 20
//lineto 120 20
//moveto 80 80
//lineto 80 25
//lineto 90 25
rectangle 50 10 80 60
//moveto 40 20
//lineto 50 20
//moveto 70 40
//lineto 80 40
// enable
moveto 60 80
lineto 60 60
moveto 55 60
lineto 60 50
lineto 65 60
ellipse 0 15 10 25
// in ref
moveto -20 40
lineto 5 40
lineto 5 25
lineto 3 30
moveto 5 25
lineto 7 30
// in
moveto -20 20
lineto 0 20
lineto -5 18
moveto 0 20
lineto -5 22
// min
moveto 10 30
lineto 15 30
// his
rectangle 30 15 40 25
moveto 30 15
lineto 45 15
moveto 40 25
lineto 25 25
moveto 10 20
lineto 30 20
moveto 40 20
lineto 60 20
moveto 55 20
lineto 55 40
lineto 60 40
*gain1
moveto 60 20
lineto 60 15
lineto 70 20
lineto 60 25
lineto 60 20
//uitgang
moveto 70 20
lineto 100 20
// gain2
moveto 60 40
lineto 60 35
lineto 70 40
lineto 60 45
lineto 60 40
ellipse 70 38 74 42
moveto 74 40
lineto 100 40