electroniks said:
My question related to design was actually about how to design from scratch, I am guessing that I a little confused as what the definition of DESIGN is but I think I mainly want to know for example how to build a modulator without looking at similar schematics and only from scrath if that makes sense.
Basically you need to go and get a GOOD solid eductation in Electronics, you can't learn something as complicated as that from books.
But why would you want to design something from scratch?, that's like saying you want to write a book, but you're going to invent all your own words for it!.
Even designs supposedly designed from scratch are based on previous designs, it's almost impossible to design something entirely from scratch.
Even worse than that, a great many circuits actually originated back in the old valve days, they are just modified for transistors or modern technology.
As a suitable example?, how about a wheel? - why reinvent it?, would it work better if it wasn't round? - but you can certainly 'improve' it for specific purposes using modern technology (but it's still just a wheel).