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.
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I want to change the green led on a floppy drive to blue, can I get away with just changing the limiting resistor or is this going to get more complex?
should just be able to rip the LED out and replace it with the new blue one.
The limiting resistor was set for the Green LED and it should be the same for this. Although I think blue LED's have a higher Vdiode so that resistor might have to be reduce slightly.
You can just parallel a high value (ie a few hunder kohm) with it to drop it by enough
At least the price on these things is so minimal you can afford to experiment. It shouldn't be to difficult though. If one led doesn't work try one with a higher or lower rating before you change any resisters or anything like that I'd say.
True, 3.5" floppy drives are cheap enough to tinker with. Personally I'm up for junking it and replacing it with a card reader myself. Eventually the display LEDs on the optical drives will come under scrutiny
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