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Make cool gadgets from a deceased fluorescent lamp

Step 5Adjust your output voltage

Adjust your output voltage

Now, connect the NiCd to your dc-dc converter and adjust it to output 1.5 to 1.8 volts. Then power up your MP3 and fine tune it to get the full battery scale. This circuit will be able to charge your MP3 battery and at the same time power up your MP3.

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