On Tue, 05 Sep 2006 08:05:46 +0100, VentureOverland
wrote:



Colin,
Sounds like a timer of some description would be just the thing. A
circuit diagram woud be much appreciated.

Many Thanks.
Jon
Regards,

Jon
VentureOverland
http://www.ventureoverland.com


Here you go. It's quick and dirty, but hopefully, it'll do the job...

http://www.stamp.plus.com/temp/TimeDelay.JPG

The components are :-

Resistor - 390R 0.5W - Farnell 9340513
Capacitor - 6800uF, 16V - Farnell 8767203
Relay - 12V 2250R coil - Farnell 1175000

The delay should end up at about 2.5 seconds. The choice of relay is a
bit critical, I'm afraid, since it's such a simple circuit. The coil
resistance does need to be high or it won't pull in with the 390R
resistor.

Cheers,

Colin.