Circuit :  Abu-Hafss, Pakistan
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Description
This circuit takes a non-locking press button switch and uses the ubiquitous 555 timer to converts the switch action to a toggle switch. Notes
This simple circuit, built with a 555 and a few passive components, will energize and de-energize a relay at the push of a button. Any type of momentary action push-to-make switch can be used. Pushing the button once will energize the relay. And pushing it again will de-energize the relay.