Re: which program of PCB is used to do the images of the Ele
Drawing a circuit using a CAD software and printing it using a printer is very different from publishing it in books or magazine. They hv to be of of quality that the publisher approved for printing. Therefore the drawing hv to be processed further to improved its appearance (text size, fonts, graphics, layout etc..).
I believe they (Elektor) either using very expensive package or using std package and processed it before prining.
The std package available are Cadence Allegro & OrCAD, Mentor Graphics, Cadstar, Zuken and of course Altium (Protel) which I am using and I think the cheapest.