I have made and I'm thinking of selling such a device on my new website: www.corsamods.co.uk.

If anyones interested, send me a message at neil@corsamods.co.uk

http://www.corsamods.co.uk

The device slowly fades the light after about 5 seconds when you shut the door.

[Edited on 14-05-2003 by S21NMP]

Unless you going to buy me one (B-day present???) and send it to me via Mail here in South Africa?

i saw a kit in my local motor factors on saturday, cost about £1.50 and was two wires and a black thing.
called summat like a light delay timer or summat.
didnt buy one coz dont need it but it might help anyone who is interested.
ben

Will have a look at it soon see if I can get it done, but yep has electrician says, delay circuit timer is the way, really easy do that is aswell, just costs a bit more.

High capacitor required as its the current output afterwards that is required.

i spoke to an electrican, and not possible with a cap and a resistor.(please prove me if i am wrong with diagrams and specs :))

He said that you would need a massive Cap, 44000 uF to release 12 volt over 30 seconds. Best is to get a Delayed Off circuit timer.

Not had chance look yet but will try get it done this week and post up to everyone.
R

cool. u2u me wot results u get

Nope wrong there above! Sorry.

The resistor is there to discharge the capacitor. As said use T=RC equation. this is for 63% discharge. Multiply by 5 for aproximate full discharge. Pu the resistor across the capacitor, that should work.

Right, will get loads of capacitors and resistors tomorrow and try it, give exact details if people want??

U2U or post, I'll have it sorted tomorrow no doubt. :thumbs:

at a guess I would say in between cap and bulb, I presume it would resist some of the charge in the cap, therefore making is last longer.
*Just a guess, I ain't no electrican or anything* :D

k, thanks, but where does the resistor go??

www.maplin.co.uk

Where would you buy that stuff? anywhere online?
where does the resistor go? b4 the cap, or inbetween the cap and the bulb?

[Edited on 11-05-2003 by baza31]

Try a 3300uF capacitor in line with the bulb, you then need to use a resistor to diapate the charge. This value will alter discharge time. Use a 1kohm resistor, link this across the capacitor. Not sure if directly across it or link one end to ground. Time for light to stay on until not current is flowing should be aprox 16s but it'll look dimmer well before that.

T=RC for time constant, 63% of charge discharged.
Make sure you put the capacitor in the right way too otherwise you'll blow it up!

i have tried that, i have put two 3300 uF 16V Capacitors in parralel with the bulb, and when you cut the power, it dies instantly. What specs cap must i use ?

in my alarm when i dis arm it puts the light on till i start the engine up then it turns it off

u have to put a capacitor in parallel with the load (in this case the bulbs)

could you not just put a cap inline with the power to the light, so it would just stay on until the cap had discharged, and maybe fade out ?

Anybody know how to build on of these ?????

Scrap yards don't even have the old Corsa B in "Stock", let alone the Corsa C.

I wanna build this myself, so if you have any circuit or links to site, now is the time the paste them in this post.

Thanks

The corsa c has this, so if you have any scrap yards where you are - if u have the corsa c - u could get the parts from it.

hi,

What sould i search for, as i can't find bollocks here about this.

i think it has been covered before, not too tricky, but if you have an alarm which uses the courtesy light then the alarms' functions may not work, as in it might not turn it not when you deactivate it and so on

Hi all,

Do you know in the Merc and BMW's when they close there doors, the light stays on for about 20 seconds and then dims off.

Well i want to build one of these for the Corsa B here in South Africa.
Does anybody know how to do this?
Does anybody have any circuit diagrams for this?

Thanks