> The way to make a relay drop fastest is to allow it to > allow its kickback voltage to rise (the higher it rises > the faster it will decay). As high as the coil and driver permits If driver is a transistor, open collector, then a zener between c and e is nice and easy. Zener voltage= slightly lower than c-e breakdown. /Morgan Morgan Olsson ph +46(0)414 70741 MORGANS REGLERTEKNIK fax +46(0)414 70331 H€LLEKS (in A-Z letters: "HALLEKAS") SE-277 35 KIVIK, SWEDEN mrt@iname.com ______________________________________________________________