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gx1400 06-12-2012 02:25 PM

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I second the FET idea. Here is my relay driver I use on a regular basis straight from work. Excuse the interpage connect... basically its a 1k ohm resister to the gate of an Si2318DS N-channel FET that switches ground on the coil of the relay.

I use some pretty expensive Teledyne relays for high reliability applications, but this should work for anything without too ridiculous of a coil current.

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