Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
I want to reduce the power to a aerator pump that is powered by a 12 volt boat battery. The pump draws 3.5 amps. I have tried a 10ohm 10watt resistor (the largest they have) but it gets to hot. Any suggestions would be greatly appreciated.
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