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basic driver board for DVDRW laser diodes
Part numbers are printed on the top of the board. Though it claims to have errors, there are none. This was my first project and I finished it good, but not in the process they wanted. Bill of materials:
2x 10 ohm resistors
1x Diode 1N4001
1x variable resistor 100 ohm
1x capacitor 10uF 16v
1x regulator LM317
1x laser diode from DVDRW drive
7.2 volts ideal, but will work with up to 9v.
The board has two holes drilled designed for screw-mounting. Hole diameter 2mm.