untested circuit design

[flibbergibbin]

hello
i'm new to all this stuff and wanted to know how a person goes about designing a circuit without actually putting the parts on say a breadboard? i noticed when looking in the layouts section that certain designs said untested and was wondering how does a person begin to design from mind with specific values without testing it on again a breadboard or the like. i'm assuming it has to do with the current and how much energy is going into and out of the various components and a knowledge of values and how they react with the other components but i'd like someone to explain if they could a general layout of how one would go about this process. thanks.

[Connoisseur of Distortion]

designing is exactly what you think it is: creating a case-specific solution to an existing problem. to actually design something, you need a problem and the means to overcome it. I imagine it is the means you are looking for.

http://www.tpub.com/content/neets/14180/

http://www.geofex.com/

http://www.analog.com/library/analogDialogue/archives/39-05/op_amp_applications_handbook.html

read, read, read! you can never pick up too much.

[flibbergibbin]

thanks i'll be sure to do that. i love to read so no problems there. thanks.