Has anyone ever made a resistor or capacitor box (thumb wheel selectable increments) which works like this:
[jumper 0 ohms] [1 ohm] [2 ohm ] [4 ohm] [8 ohm] [16 ohm] [32 ohm] [64 ohm] [128 ohm]
You'd have all those resistance values and switch them in and out of series with the other resistors to additively create any ohmic value from 0 ohms to 255 ohms. To do the same for capacitors, you'd just switch the values in and out of parallel connection with the others.
This is binary of course.
I hardly think this could be a new thing I'd thought of. Ideas?