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geekhack Projects => Making Stuff Together! => Topic started by: Tarzan on Tue, 19 March 2013, 11:40:35

Title: LED Swap - Magitronic board
Post by: Tarzan on Tue, 19 March 2013, 11:40:35

I'm interested in swapping the stock LEDs used in an older Magistronic board for a different color/shape (the stock ones are kind of tall and wedge-shaped, apparently to best fit the aperture in the top case).

Anything I should be wary of, or is this a fairly straight-forward swap?  I've no idea what the stock LEDs are rated at, I figure I can test the leads with a multimeter and see what voltage is present when the light is lit.

These are the ones I'd like to use as replacements:

http://www.unique-leds.com/index.php?target=products&product_id=1858

Title: Re: LED Swap - Magitronic board
Post by: dorkvader on Wed, 20 March 2013, 12:30:17

what colour were the stock LED's? If they were blue or green, their VF might be a little higher, and you can look into replacing the resistor. likewise, red LEDs are usually about 1.6V so you might have to change it there.

I notice the replacement LEDs have a VF of ~2V, so they might work as a drop-in

What's best is to check the resistor, and see what current you want through your new LED to see if it needs to be changed