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In this video I am building a proximity charger for cell phones, for this project I used the circuit of a filament lamp, and coils of copper wire check out other videos on the channel, you will love how to make homemade homemade pyrograph • how to make homemade homemade pyrograph how to make homemade voltage regulator • how to make homemade voltage regulator how to make pyrograph pens* • how to make homemade pyrograph pens ... how to make pyrograph tips • how to make pyrograph tips Make your own transformer • Learn how to build a transformer ... *Ideas with microwave transformer*: • Ideas with microwave transformer ideas with ATX source • ideas with ATX source Homemade inventions • Homemade inventions Channel showcase • Channel showcase General electronics maintenance • General electronics maintenance Pyrographer drawn for the writings • Pyrographer drawn for the writings. SOCIAL NETWORKS / samuel.vitorino.330 / secretario_do_amo2