I have built a Binary to Unary (kind of) circuit on my breadboard. It looks like this:
There are three switches that represent "binary number", and according to that switches' combination, number of lit LEDs change to represent that binary number.
So for example:
A B C LEDs 0 1 0 _____OO 0 1 1 ____OOO 1 0 0 ___OOOO etc..
But with different ABC combination my LED's are lit with different luminous intensity...
I am wondering how do provide equal current and voltage for LEDs and make them light up with equal luminous intensity independent of switches' combination. Probably I'm not understanding some major law in electronics.