optocoupler switch

Thread Starter

bioukanon

Joined Jun 6, 2009
2
Hello to all. I need a circuit with a optocouple to switch a relay. The input that I need is 12V and the relay is 12V too. I 'll like to use like a simple relay. Do you pls tell me what resistance must choose and what optocoupler is good to make this circuit. Thanks
 
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