24 Hour Timer Circuit - Timing / Timer Electronic Tutorial

24 Hour Timer Circuit - Timing / Timer Electronic Tutorial

24 Hour Timer Circuit and Tutorial - A timer circuit with independent mark and space periods. A simple astable timer made with the 555, the mark (on) and space (off) values may be set independently. The timing chain consists of resistors Ra, Rb and capacitor Ct. The capacitor, Ct charges via Ra which is in series with the 1N4148 diode.

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