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opto isolator circuits

Posted: Sun Jul 19, 2009 8:42 pm
by GERONIMO1881
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