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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.

Recent content by barughy

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    Bicycle light, usb-charger help

    Hello, I have a bicycle dynamo (40% efficeiency, 6v/3w) that I want to charge my bike lights (which is a converted 12v Remington electric shaver, with rechargable batteries - powered by 3 LEDs in parallel) The voltage going to the LED's is 4.8v, if I've used the multimeter correctly. I also...
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    Help in creating a battery pack charged by bicycle dynamo

    Thanks for replying Pete, My dynamo is in the post but online reviews say it generates enough power for lights even at walking speed. Here's the link: **broken link removed** Power source: 6V, 3W - I believe that the current is DC, but not 100% until it arrives. The light I've...
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    Help in creating a battery pack charged by bicycle dynamo

    Hi Pete, thanks for replying. here is the dynamo I've just bought; **broken link removed** Power source: 6V, 3W I dont know what the RPM requirments are because It's being delieved by post, but reviews have said that walking speed is enough to power their lights. The LED light that I...
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    Help in creating a battery pack charged by bicycle dynamo

    Hello all, I'm a complete novice in regards to anything electrical (I know how to wire a plug and thats about it) so I need you help if possible. I'm looking to charge a battery pack using a 'Brompton AXA Traction Right Hand Dynamo' This is what i'm hoping to acheive (let me know if its...

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