Project Name : 12V DC power supply.
Project Description : A power supply of 12VDC that can operate Wireless 12V drill, wireless 12V screwdriver when thier battery need to be recharged.
Components : (From eBay)
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1 - transformer 220VAC to 12 VAC. mine was 160W max. 6.7 $
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4 - 1N5822 diode. 0.3 $
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1 - 2200uF electrolytic capacitor. 0.1 $
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1 - Voltmeter/Ammeter display. 4.0 $
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1 - 5 mm led of any color. 0.1 $
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1 - resistor 1 to 2.7 K Ohm . 0.1 $
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1 - SPDT on-off switch 6 amp. 0.3 $
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1 - Plastic Box with cover 0.5 $
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TOTAL ................................................................................ 12.1 $
This is the transformer I used for the power supply