![Electronics: Resistor Color Code Chart [700x832 - 138KB]](https://pic8.co/sh/Q4W4fH.png){kind=link}
why not just put the Ohms right on the resistor?
Back in the olden days it was easier to paint on the lines.
They do print on the numbers for some modern surface mount resistors. They use a 3 number system because there isn't much room. The first 2 numbers are..... well.... the first 2 numbers of the resistor's value. The 3rd number is the amount of zeros you need to put after those numbers.
So a resistor that is 2200 ohms, would have "222" written on it. Twenty-two with 2 zeroes.
>why not just put the Ohms right on the resistor?
Back in the olden days it was easier to paint on the lines.
They do print on the numbers for some modern surface mount resistors.
They use a 3 number system because there isn't much room.
The first 2 numbers are..... well.... the first 2 numbers of the resistor's value. The 3rd number is the amount of zeros you need to put after those numbers.
So a resistor that is 2200 ohms, would have "222" written on it.
Twenty-two with 2 zeroes.
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