How to make a latching relay

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This video will show you how to build a latching relay.
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Diodes! Thanks, man. This wasn't *exactly* my use case, but the part I couldn't figure out was the diodes. Thanks!

curiousgeorgej
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thanks for this still important 6 years after ...

vwpac
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Thanks for this. I've been trying to figure out how to make things start in my turbo airforce van when I hit the starter but stay on when I release it. Mainly my oil scavenging system pump, this will work great.

turbocube
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Great video. I need your help. I have some momentary switches I would like to power LED Aux lights on my truck. The switches are negative switching. How would I wire the relay?

alexetchells
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How do I make a momentary contact switch
like this one into a smart switch. I have blinds
that I need to hold the switch in the down
position to go down and the up to raise the
blinds. So does anyone know how to make
that a smart operation? Thank you.

davidmorris