textcenter 0 10 FF
label 20 55 K
label 40 55 τ
moveto 0 19
lineto 51 19
moveto 0 21
lineto 51 21
moveto 53 20
lineto 45 23
moveto 53 20
lineto 45 17
ellipse 53 13 67 27
// plus
moveto 56 20
lineto 64 20
moveto 60 16
lineto 60 24
// uitgang
moveto 67 19
lineto 100 19
moveto 67 21
lineto 100 21
//ingangen
moveto 0 39 
lineto 10 39
moveto 0 41
lineto 10 41
// piz
rectangle 10 30 50 50
moveto 50 39
lineto 59 39
lineto 59 29
moveto 60 27
lineto 57 35
moveto 50 41
lineto 61 41
lineto 61 29
moveto 60 27
lineto 63 35
// piz characteristic
moveto 13 32
lineto 13 47
lineto 48 47
solidpen 255 0 0 1
moveto 14 40
lineto 48 35
// limiter
solidpen 255 0 0 0
moveto 70 15
lineto 75 17
lineto 90 17
lineto 95 15
moveto 70 25
lineto 75 23
lineto 90 23
lineto 95 25
solidpen 0 0 255 0
// min
moveto 60 80
lineto 60 50
lineto 82 50
lineto 82 25
lineto 84 30
moveto 82 25
lineto 80 30
// max
moveto 80 80
lineto 80 55
lineto 100 55
lineto 100 0
lineto 82 0
lineto 82 15
lineto 84 10
moveto 82 15
lineto 80 10
//ingangen
//moveto 20 80
//lineto 20 50
//moveto 40 80
//lineto 40 50
//textcenter 85 40 K,tau