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Steps highlighted with a yellow warning triangle represent a
polarized component. Pay special attention to the component’s
markings indicating how to place it on the board.
Now that you’ve successfully soldered in the
resistor, use the same method to place and solder
the rest of the components.
Photocell:
This part fits in the slot marked at the bottom of the
board. Orientation for this device doesn’t matter.
Transistor (2N3904):
It’s the only three-pin device and it’s black.
Notice the silkscreen (white print on the board) resembles a half
circle. Make sure to place the transistor in the holes with regard
to the silkscreen. The round side on the board should match the
round side of the transistor.
220 Ohm Resistor:
Match the resistors to the correct positions
on the board, then solder.
Photocell
15
Transistor
14
220 Ohm Resistor x 2
13
CONTINUE WITH THE
TOP OF THE BOARD
[ STEPS 13 T0 16 ]
47K
220
220
TOP OF BOARD
