CHAPTER 9 ■ RESISTORS
Labeling and Storing
Measure and sort all of the resistors in your variety pack. If the resistors are attached by reel tape, keep them
together and write the value on the tape (see Figure 9-11).
Figure 9-11. Resistors still connected to reel tape with hand-written value at bottom
I like to store my resistors in groups based on their third (multiplier) color band. That is, I organize
resistors together that have a value between 0 and 99 (black), 100 and 999 (brown), 1 k and 9.9 k (red),
10 k and 99 k (orange), 100 k and 999 k (yellow), and 1 M and up (green, blue). Checking for a single
color band makes them easy to sort and to find values that are out of place.
Obtaining Storage Cases
Buy a bunch of plastic storage cases with movable compartment separators (see Figure 9-12). It’s easier to
stack cases if they’re all the same size, and, as a robot builder, you’re going to have lots and lots of different
parts. You’ll want to be able customize the size of the individual compartments within the cases to fit the size
of your parts.