opto isolator circuits

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GERONIMO1881
Posts: 4
Joined: Thu Mar 20, 2008 9:25 pm

opto isolator circuits

Post by GERONIMO1881 » Sun Jul 19, 2009 8:42 pm

Hi Guys!

I need a schematic circuit using an opto-isolator to switch on a 12v dc relay.

Would a 4n33 do the trick, and what would be needed on the input pins to turn it on?

Anyone out there have the answer?

Bestest to all,

Geronimo1881

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