Print PDF
Favorite
Email
Step 3Adding the resistors.
There are four resistors to install and to keep things simple they are all the same value - 1000 ohms.
They are not polarity sensitive, so can be inserted any way round. Perfectionists might like to make the colour bands all read in the same direction.
The group of three resistors in parallel are for the MOSFET control, while the one that sits at the bottom of the PCB on its own is to limit current through the power indicator LED to a few mA.
The colour code on each resistor reads as follows. Brown (1), Black (0), Red (2), Gold (5%). The resistor value is worked out as 1, 0 and a multiplier of 2 which means two more zeros. Therefore it is 1000 ohms. The gold band indicates that the measured value has a tolerance of plus or minus 5%.
They are not polarity sensitive, so can be inserted any way round. Perfectionists might like to make the colour bands all read in the same direction.
The group of three resistors in parallel are for the MOSFET control, while the one that sits at the bottom of the PCB on its own is to limit current through the power indicator LED to a few mA.
The colour code on each resistor reads as follows. Brown (1), Black (0), Red (2), Gold (5%). The resistor value is worked out as 1, 0 and a multiplier of 2 which means two more zeros. Therefore it is 1000 ohms. The gold band indicates that the measured value has a tolerance of plus or minus 5%.
| « Previous Step | Download PDFView All Steps | Next Step » |
sorry im quite a noob =P