DIY 12V Screen Trigger

[petrolhead]

How easy would it be to make a 12V Electric Screen trigger.

I assume its a relay of some sort.

Any ideas

[themadhippy]

depends how much current is avaliable,if its olny a few milli amps then youll need a transistor and a few resistors as well as the relay and a 12v psu

[petrolhead]

I did a seach and found this:

http://www.quasarelectronics.com/3043.htm

This may do the job?

[themadhippy]

that will do the job as long as the trigger output is capable of delivering 30ma at 12v

[petrolhead]

Well I have now found out the currebt for the trigger and its only 13Ma!!

Any suggestions?