See the datasheet on the Motorola MOC3010, which should be available on the web. It includes some typical circuits. You may also want to consider just buying a Solid State Relay. These have either a triac or a pair of SCRs along with all the drive circuitry and opto isolation in a package. Harold On Fri, 1 May 1998 18:20:54 +0200 "Max Dekkers,ri" writes: >Hi there! > >Has anyone out there experience with switching mains power (220v / >3amps) from a 12c508 ? (I'm trying to switch a PC ON and OFF) > >I'm trying to find a cheap but reliable method. I heard the cheapest >method is using a triac. > >Could anybody give me a hint on what the wiring-diagram would look >like >??? > >Thanx in advance. > >Max Dekkers,Netherlands > _____________________________________________________________________ You don't need to buy Internet access to use free Internet e-mail. Get completely free e-mail from Juno at http://www.juno.com Or call Juno at (800) 654-JUNO [654-5866]