Does anyone a web site were there is instructions on how to change the speedo lights into LED's ??

im wanting to change the speedo to LED's so i can have it blue in stead of borin white !

thnx

One of our board moderators, JeffD has a good explaination on how to do it on his site.

It's very easy because the leads on the LEDs fits into the globe sockets. You must just keep in mind that LED's work with current and not voltage so you'll have to solder a resister inline on one of the legs as to limit the current. I'm not sure what LEDs your using but usualy they have a max current of about 25mA. At 12V you'll need a resistor of about 510ohm.
Ask your local electronics shop where you by the LEDs whats the max current just to be safe.If you make the leads ver short on the resister you can fit it in bvery nicely between the LED and the globe socket. We were doing it on the dashboard of a car.

The calculation for getting the resistor value:
resistence=voltage/current=12V/25mA(0.025A)=480ohm
The clossist standert resister values for 480 is 470 or 510 (I went for the higher value just to be safe)

PS Mind my engluish spelling, not so good lol:)

actually its under modifications on gstwins.com

http://www.gstwin.com/led_gague_lights.htm

also from the poster above youre close.

The LED's will each drop a certain amount of voltage , usually 2v so  you need to subtract that from 12v and then determine the current.  So with 5 leds you need to subtract 10v from your supply voltage and then divide by the current to get the resistance.    

Or with 2 LED's at 2v and running 20mA you will have.

12-4 = 8      r=v/i  8/0.02 = 400ohms  

JeffD

the LED's have differnt Voltage drops, some depends on manufacture and some depend on color.  i have some superbright Blue that will handle 3.2-3.6V idealy, it claims to be able to handle up to 4v reverse   :dunno:

think i stuck 4 in parallel with a 380 Ohm resistor using 12 Volt from Computer powersupply, been running that for about a month with no change in briteness, resistor isnt to warm either. but im still learning this stuff.

http://metku.net/index.html?sect=view&n=1&path=mods/ledcalc/index_eng#single


here is a link to help you with the numbers.