T&L Publications

have in the past used an analog 24 hr clock to "trip" a 555 timer via adjustable "projections" on the clock face as they trip a trigger connected to the 555 timer. problem is torque of clock face becomes too weak to drag past trigger when batteries of clock get weak. and/or if fa...

first time user and novice electronic explorer. am looking for way to make (or buy components for) digital clock/timer that could be set for multiple (at least 2 i.e. 1 in am and 1 in pm) events lasting 1 to 5 sec's or so. the events would be to power a small dc motor. in other words, i'm trying to ...