KJ6EAD Active Member Jul 19, 2012 #21 Since you have the switch, which one is it, open or closed without the magnet? If you have a multimeter or continuity tester, you can just test it. Last edited: Jul 19, 2012
Since you have the switch, which one is it, open or closed without the magnet? If you have a multimeter or continuity tester, you can just test it.
S savatreatabvr New Member Jul 20, 2012 #23 I have the normally open switch! QUOTE=KJ6EAD;1071614]Duplicate.[/QUOTE]
S savatreatabvr New Member Jul 20, 2012 #25 It would be much simpler to just pick up a normally closed switch right? Seems to me! KJ6EAD said: Then you need Crutschow's circuit or the other type of switch. Click to expand...
It would be much simpler to just pick up a normally closed switch right? Seems to me! KJ6EAD said: Then you need Crutschow's circuit or the other type of switch. Click to expand...
KJ6EAD Active Member Jul 20, 2012 #26 That would be my thinking but then I would have insisted on a 20mm jumbo LED too!
KJ6EAD Active Member Jul 20, 2012 #28 That's a good idea but only if it's LED and can be operated from your 3V supply.